History YMMV / Robotrek

** A maxed out Punch 3 is a weapon that frequently scores critical hits, turning most fights - including a little over half of the bosses - into [[OneHitKill fights that end with two, or possibly even just ONE Critical Hit]]. Combine it with a high defense and a Shield 5 and you can pretty much just stand there next to the opponent and effortlessly punch your enemy to death.

* ThatOneBoss: Being an Enix game, the list of bosses that aren't in this category is smaller.

** Papamecha: Its machine gun has the highest critical hit rate of any boss (possibly enemy) in the game at 50%. Note that unless your robot blocks the attack, critical hits otherwise ignore your defense rating, so it's likely going to be a one-hit kill.

** Papa Mecha: Its machine gun has the highest critical hit rate of any boss (possibly enemy) in the game at 50%. Note that unless your robot blocks the attack, critical hits otherwise ignore your defense rating, so it's likely going to be a one-hit kill.
** Black Tank: Think Big Eye, but amped up in terms of the ways it can attack, and the first boss you can't one-shot with a crit due to the damage cap.
** [=DeRose=]: She's the second boss that has too many HP for you to one-shot away in a lucky critical hit (2000, to be precise), She also possesses a laser beam that can cause confusion, a nuke that does decent damage regardless of your position, and a headbutt attack that hurts a lot ''and can crit''. She also has ''87.5%'' RUN resistance, meaning that unless you take a Punch 3 into battle for its high critical hit rate, you'll be chipping away at her massive health pool for a longer time than is already likely. This battle is one of attrition comparable only to the final boss, as you attempt to finish her off before you run out of Cures and Repairs.

* BreatherBoss: Bug Bug, both times.

** Any enemy with Run command resistance. This lowers the effectiveness of Run commands and naturally, late-game bosses have maximum Run resistance. Meaning unless you score a critical hit, you're going to do scratch damage to them.

* GoodBadBugs: Attacking an enemy in the back is checked by seeing if your robot is facing the same direction as the enemy. Meaning that for any weapon that doesn't need aiming to hit the enemy (e.g., Sword 4), all you have to do is turn the robot around, attack, and the game thinks you hit them in the back. Of course, [[HoistByHisOwnPetard this logic applies when the enemy attacks the robots as well]]

** Certain attacks can lock out one of your commands, indicated by if the robot glows red after being hit by it. While sometimes this is mostly benign (locking out the Run Away or Items command), this can be downright frustrating if the RUN command or the robot's primary weapon keeps getting locked out.

** Big Eye: This boss has a lot of attacks that hurt a lot, and is the first boss to start outright blocking attacks. This is an effective road block unless the player found the Scrap 9 in the [[OneTimeDungeon Volcano Base]] to make a defensive item or happen to create a Game Breaker weapon.
** Papa Mecha: This boss has the highest critical hit rate of any boss (possibly enemy) in the game at 50%. Note that unless your robot blocks the attack, critical hits ignore defense, so it's basically a one-hit kill.
** Black Tank: Think Big Eye, but amped up in terms of the ways it can attack.
** [=DeRose=]: She has the second highest amount of HP, a laser beam that can cause confusion, a nuke that does decent damage, and a headbutt attack that hurts hard. She also has RUN resistance, meaning unless you take Punch 3 for its high critical hit rate, you'll be chipping away at her health. This battle becomes one of attrition, hoping to finish her off before you run out of Cures and Repairs.

** A maxed out Punch 3 is a weapon that frequently makes critical hits, turning most fights including bosses afterward into [[OneHitKill one or two Critical Hit Kill fights]]. Combine it with a high defense and a Shield 5 and you can pretty much just stand there next to the opponent and effortlessly punch your enemy to death.

** Big Eye: This boss has a lot of attacks that hurt a lot and is the first boss to start outright blocking attacks. This is an effective road block unless the player found the Scrap 9 in the [[OneTimeDungeon Volcano Base]] to make a defensive item or happen to create a Game Breaker weapon.

** Big Eye: He hurts. A lot. If you wasted your Scrap 9 on something other than Shield 4, this is effectively a stopping point in the game until grinding overtakes his power.
** Black Tank: Continues the trend that Big Eye started.
** [=DeRose=]: The poster child for this trope. She has the second highest amount of HP, a laser beam that can cause confusion, a nuke that does decent damage, and a headbutt attack that is basically instant death. Since she also has RUN resistance, unless you go in with a maxed out Punch weapon, the battle becomes one of attrition assuming you didn't spec out a robot for high evasion and defenses.

* ThatOneAttack: Confusion. Any enemy that can use it can lock you in a near-endless cycle of uncontrolled movement unless you save against it, which even a fully-upgraded robot cannot do reliably.

* GameBreaker: One item, creatable from about the game's mid-point, is a backpack that heals your robot each turn. Get it, and max the bot's Defense, and losing becomes basically impossible.
** The item (Solar Pack) is [[GuideDangIt craftable quite early in the game]] if you do some farming for an Empty Pack which rarely drops off of one specific enemy that only spawns during your only trip to the area which cannot be revisited. Combine it with a Weather that you learn how to make right after that area for said GameBreaker item.
** Add the Tank Treads (the "Boots" that replace your robot's feet with a pair of treads) for even more ridiculousness. Said treads increase defense and evasion (while making your robot incredibly slow moving), and add in a Shield 5 for a robot that even the ''last boss'' can't even touch.
** Use and max out the level of punch 3 and you have a weapon that frequently makes critical hits which hit the damage cap with a basic attack and do decent damage if not, turning most fights including bosses afterward into joke [[OneHitKill One or two Critical Hit Kill fights]] while even the final boss will go down in only a few Critical Hits from it. Combine it with a high defense and a Shield 5 and you can pretty much just stand there next to the opponent and effortlessly punch your enemy to death.

** Meta Crab: A WakeUpCallBoss, if anything. Long-range attacks don't work on him, even the easily spammable big-bang attack.
** Mamurana: Not only does she do moderate damage, but she constantly splits into clones.

** [=DeRose=]: The poster child for this trope. She has the most HP in the game aside from the final boss (About 5000), a confusing laser attack, a powerful nuke attack, and essentially an instant death melee attack. It's also impossible to do more than ScratchDamage unless Axe 3 is used with the triple hit combo, and all three have to hit. The fight is trying to hurt her faster than she can deplete your stock of Cures.

* HilariousInHindsight: A RPG game about a lone child protagonist going to save the world with a battle system about having said kid throw a red and white ball on the battlefield which explodes to free a being that the player then has fight for them. Are we talking about Robotrek or {{Series/Pokemon}}? Made all the more amusing due to several Pokemon like Polygon that have a mechanized look and/or artificial origin.

* HilariousInHindsight: A RPG game about a lone child protagonist going to save the world with a battle system about having said kid throw a red and white ball on the battlefield which explodes to free a being that the player then has fight for them. Are we talking about Robotrek or Pokémon? Made all the more amusing due to several Pokemon like Polygon that have a mechanized look and/or artificial origin.

* ThatOneBoss: Being an Enix game, the list that aren't these is smaller.
** Meta Crab: A WakeUpCallBoss if anything. Long range attacks don't work on him, even the easily spammable big-bang attack.

** Big Eye: He hurts. A lot. If you wasted your Scrap 9 on something other than Shield4, this is effectively a stopping point in the game until grinding takes over.