History Main / EmergencyEnergyTank

*** The ZX series allows you to have both Sub Tanks and Energy Tanks. In story, Energy Tanks are referred to as ancient technology that people have suddenly started using again for some reason and are very expensive.
** In the Zero series, there are Cyber Elves. They vary in function, but some can heal you partially or completely or even become Sub Tanks. Using any of the Fusion Elves (all of the ones that heal you or become a Sub Tank are Fusion Elves) even once results in them dying permanently and you receive an end of the level score penalty, however. That is, unless you're in Zero 3's Cyberspace, in which case, certain Fusion Elves are automatically activated without dying (though, none of those are of the healing variety and you're automatically penalized every time you go in there, except for one instance).

* Jenka in ''CaveStory'' will give you a life pot about 1/4 of the way through the game. You can use it at the inventory screen to heal all of your HP, but only once, and you can only carry one at a time, so you have to go back to Jenka to get another one. It's a bit annoying how you have to go through the entire labyrinth just to get another one if you happen to have used yours during the battle with Balrog.
** Actually, there is ''one'' other way to get one and that is on your way out of the Plantation, one of the last areas. Which is handy since that way out is a PointOfNoReturn. You still can't have more than one, though.

* The ''VideoGame/MarioAndLuigi'' series features the Max Mushroom, which completely restores a selected brother's HP, the Max Syrup, which restores all Bros. Points, the 1-Up Super, which revives a KO'd brother with max HP, and the Golden Mushroom, which restores all HP and BP.

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* Potions in WorldOfWarcraft work like this. They can be used in battle, but can't be spammed due to a long cool down that affects all potion usage. As such one must know when to use potions to avoid wasting it.

[[AC: Unsorted Examples]]
* Named after the Energy Tank item from the ''Mega Man'' series. To use it, you go to the inventory screen and select it to refill your [[HitPoints HP]]--or selected weapon ammo if it's the Weapon Tank variant--to 100%. Some of the games feature a special variant (Mystery Tank or Super Tank, depending on the game) which completely refills not just your HP, but ''every single item'' in your inventory that happens to have less-than-100% energy.
** Debuted in ''Game/MegaMan 2'', and [[MemeticMutation famously kept until the very end when fighting]] [[BlowYouAway AirMan]].
** The SequelSeries ''MegaManX'' however had the rarer (four in the early games (X1-X3), and later only ''two'') but refillable Sub Tanks instead. These are carried over to the later SequelSeries in the timeline.
*** The ZX series allows you to have both Sub Tanks and Energy Tanks. In story, Energy Tanks are referred to as ancient technology that people have suddenly started using again for some reason and are very expensive.
** In the Zero series, there are Cyber Elves. They vary in function, but some can heal you partially or completely or even become Sub Tanks. Using any of the Fusion Elves (all of the ones that heal you or become a Sub Tank are Fusion Elves) even once results in them dying permanently and you receive an end of the level score penalty, however. That is, unless you're in Zero 3's Cyberspace, in which case, certain Fusion Elves are automatically activated without dying (though, none of those are of the healing variety and you're automatically penalized every time you go in there, except for one instance).
* Fairies in the ''LegendOfZelda'' series, which (depending on the game) refill some or all of your life. These fairies can be used in two different ways if you catch one. You can assign her to a button during game play and press it, or she can automatically revive you if you die, saving you from certain GameOver. Various potions can also recharge your health or mana.
** Since the two DS versions don't have empty bottles, the fairies are replaced by Purple Potions, which you can drink manually, or Link will drink it automatically when he dies.
*** Similarly in Link's Awakening and the Oracle of Seasons/Ages games for GameBoy and GameBoyColor respectively, you have no bottles. All three games allow you to obtain a Magic Potion which will save you from death once before vanishing.

* Full Restores in ''{{Pokemon}}'' restore all HP and eliminate any status effects, but since you can buy them at Pokemarts, [[AwesomeYetPractical they get used quite a bit late in the game.]] However, Max Elixers (which completely refill [=PP=] for all a pokemon's moves) and Max Revives (which revive a fainted pokemon with full HP) ''aren't'' sold in the marts, making them definitely TooAwesomeToUse. This goes doubly so for the Sacred Ash item, which fully revives ALL of your KO'd pokemon to full HP. They are ''exceedingly'' rare, however, as Heart Gold and Soul Silver only let a player obtain two of them. Ever.
** The AwesomeYetImpractical, Revival Herb does the same exact thing as a Max Revive and can be bought in stores, but feeding one to a pokemon is one of the fastest ways to drop it's happiness.
* The ''VideoGame/MarioAndLuigi'' series features the Max Mushroom, which completely restores a selected brother's HP, the Max Syrup, which restores all Bros. Points, the 1-Up Super, which revives a KO'd brother with max HP, and the Golden Mushroom, which restores all HP and BP.

* ''Super {{Metroid}}'' had these in addition to the standard energy tanks.
** ''MetroidOtherM'' features a variation: when Samus' HP are low, she can "Concentrate" to restore a small amount of HP (normally this only restores missiles). You can also collect E-Recovery Tanks which increase both the amount of HP restored and the threshold at which this option becomes available.
*** Super Metroid included a technique similar to the Concentration mechanic known as the Crystal Flash, the stricter requirements of which can be read [[http://metroid.wikia.com/wiki/Crystal_Flash here]]. It eats up a lot of your ammunition, but fully heals you, unlike Concentration, which can only replenish a number of your Energy Tanks based on how many E-Recovery Tanks you've collected (there are only three in the game). Also, unlike the Crystal Flash, which you're safe during and happens rather quickly, you can be hurt while concentrating and it'll take a while, but the rate at which you recover health and ammunition can be improved with Accel Charge powerups.

* In most ''FinalFantasy'' games, Elixirs restore all of your HP and MP, but are either not buyable or cost something obscene like [[FinalFantasyIV 100,000 gil]].
** Even better are the half a dozen or so Megalixirs and Megaphoenixes an average player is likely to find. These are held as sacred relics and only dug into when there's a boss you know you need the boost for.
* Jenka in ''CaveStory'' will give you a life pot about 1/4 of the way through the game. You can use it at the inventory screen to heal all of your HP, but only once, and you can only carry one at a time, so you have to go back to Jenka to get another one. It's a bit annoying how you have to go through the entire labyrinth just to get another one if you happen to have used yours during the battle with Balrog.
** Actually, there is ''one'' other way to get one and that is on your way out of the Plantation, one of the last areas. Which is handy since that way out is a PointOfNoReturn. You still can't have more than one, though.

* Named after the Energy Tank item from the ''Mega Man'' series. To use it, you go to the inventory screen and select it to refill your [[HitPoints HP]]--or selected weapon ammo if it's the Weapon Tank variant--to 100%. Some of the games feature a special variant (Mystery Tank or Super Tank, depending on the game) which completely refills not just your HP, but ''every single item'' in your inventory that happens to have less-than-100% energy.
** Debuted in ''Game/MegaMan 2'', and [[MemeticMutation famously kept until the very end when fighting]] [[BlowYouAway AirMan]].
** The SequelSeries ''MegaManX'' however had the rarer (four in the early games (X1-X3), and later only ''two'') but refillable Sub Tanks instead. These are carried over to the later SequelSeries in the timeline.
*** The ZX series allows you to have both Sub Tanks and Energy Tanks. In story, Energy Tanks are referred to as ancient technology that people have suddenly started using again for some reason and are very expensive.
** In the Zero series, there are Cyber Elves. They vary in function, but some can heal you partially or completely or even become Sub Tanks. Using any of the Fusion Elves (all of the ones that heal you or become a Sub Tank are Fusion Elves) even once results in them dying permanently and you receive an end of the level score penalty, however. That is, unless you're in Zero 3's Cyberspace, in which case, certain Fusion Elves are automatically activated without dying (though, none of those are of the healing variety and you're automatically penalized every time you go in there, except for one instance).
* Fairies in the ''LegendOfZelda'' series, which (depending on the game) refill some or all of your life. These fairies can be used in two different ways if you catch one. You can assign her to a button during gameplay and press it, or she can automatically revive you if you die, saving you from certain GameOver. Various potions can also recharge your health or mana.
** Since the two DS versions don't have empty bottles, the fairies are replaced by Purple Potions, which you can drink manually, or Link will drink it automatically when he dies.
*** Similarly in Link's Awakening and the Oracle of Seasons/Ages games for GameBoy and GameBoyColor respectively, you have no bottles. All three games allow you to obtain a Magic Potion which will save you from death once before vanishing.

* Potions in WorldOfWarcraft work like this. They can be used in battle, but can't be spammed due to a long cooldown that affects all potion usage. As such one must know when to use potions to avoid wasting it.

* The Portable Medkits from ''DukeNukem 3D''.

*** Super Metroid included a technique similar to the Concentration mechanic known as the Crystal Flash, the stricter requirements of which can be read [[http://metroid.wikia.com/wiki/Crystal_Flash here]]. It eats up a lot of your ammunition, but fully heals you, unlike Concentration, which can only replenish a number of your Energy Tanks based on how many E-Recovery Tanks you've collected (there are only three in the game). Also, unlike the Crystal Flash, which you're safe during and happens rather quickly, you can be hurt while concentrating and it'll take a while, but the rate at which you recover health can be improved with Accel Charge powerups.

*** Super Metroid included a technique similar to the Concentration mechanic known as the Crystal Flash, the stricter requirements of which can be read [[http://metroid.wikia.com/wiki/Crystal_Flash here]].

** In the Zero series, there are Cyber Elves. They vary in function, but some can heal you partially or completely or even become Sub Tanks. Using any of the Fusion Elves even once results in them dying permanently and you receive an end of the level score penalty, however. All of the ones that heal you or become a Sub Tank are Fusion Elves.

* The ''MarioAndLuigi'' series features the Max Mushroom, which completely restores a selected brother's HP, the Max Syrup, which restores all Bros. Points, the 1-Up Super, which revives a KO'd brother with max HP, and the Golden Mushroom, which restores all HP and BP.

** In the series, the villainous Cell is fully aware of how awesome these are, and proceeds to use his superior speed to just swipe them from the support character who brought them for the team's big showdown against him. He uses them to fuel the creation of the Cell Jr's. Having these really backfires on the heroes that time.

** In the series, the villainous Cell is fully aware of how awesome these are, and proceeds to use his superior speed to just swipe them from the support character who brought them for the team's big showdown against him. He uses them to fuel the creation of his mini-Cells. having these really backfires on the heroes that time.

** Since the two DS versions don't have empty bottles, the fairies are replaced by Purple Potions, which you can drink automatically, or Link will drink it automatically when he dies.

* The Large Medikits from ''DukeNukem 3D''.

* The Large Medikits from ''DukeNukem 3D''.

* The EX Mode in ''DissidiaFinalFantasy'' is an unconventionatial take on this. Activating it will deflect any attack that lands that second, allow you to chain HP Attacks to your EX Burst, activates HP regeneration and the character's unique bonuses whether they be special moves or passive support. It's quite common to save a full bar over a dozen battles for when you need it most.

* The Life Pot from ''CaveStory''.

* Jenka in ''CaveStory'' will give you a life pot about 1/4 of the way through the game. You can use it at the inventory screen to heal all of your HP, but only once, and you can only carry one at a time, so you have to go back to Jenka to get another one. It's a bit annoying how you have to go through the entire labyrinth just to get another one if you happen to have used yours during the battle with Balfrog.

* The ''MarioAndLuigi'' series features the Max Mushroom, which completely restores a selected brother's HP, the Max Syrup, which restores all Bros. Points, the Super 1-Up Mushroom, which revives a KO'd brother with max HP, and the Golden Mushroom, which restores all HP and BP.

!! Examples:

* The EX Mode in DissidiaFinalFantasy is an unconventionatial take on this. Activating it will deflect any attack that lands that second, allow you to chain HP Attacks to your EX Burst, activates HP regeneration and the character's unique bonuses whether they be special moves or passive support. It's quite common to save a full bar over a dozen battles for when you need it most.
* Jenka in CaveStory will give you a life pot about 1/4 of the way through the game. You can use it at the inventory screen to heal all of your HP, but only once, and you can only carry one at a time, so you have to go back to Jenka to get another one. It's a bit annoying how you have to go through the entire labyrinth just to get another one if you happen to have used yours during the battle with Balfrog.

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* Named after the Energy Tank item from the ''MegaMan'' series. To use it, you go to the inventory screen and select it to refill your [[HitPoints HP]]--or selected weapon ammo if it's the Weapon Tank variant--to 100%. Some of the games feature a special variant (Mystery Tank or Super Tank, depending on the game) which completely refills not just your HP, but ''every single item'' in your inventory that happens to have less-than-100% energy.
** Debuted in MegaMan 2, and [[MemeticMutation famously kept until the very end when fighting]] [[BlowYouAway Airman]].

* The first game in the ''{{Legacy of Kain}}'' series (Blood Omen) had the "heart of darkness", which would bring Kain back to life when killed. It was later turned into a plot coupon.