[[quoteright:350:http://static.tvtropes.org/pmwiki/pub/images/Robot_Unicorn_Attack_Heavy_Metal_Edition_IPA_Game_Version_1_1_4615.jpg]]
[[caption-width-right:350:GLORIOUS!!!]]

->''"WAR AND ANGER SHALL REIGN! (THE CLASH OF IRON CAN BE HEARD)\\
BY BLINDNESS YOU'RE DRIVEN INSANE! (I'M LOST IN ANGUISH AND GRIEF!)\\
SORROW WON'T WANE 'TILL YOU DIE! (A SHATTERED BODY DEEPLY HURT)\\
AND DARKNESS WILL COVER THE LIGHT!\\
IT'S GONE FOREVERMORE~!"''
-->-- '''You, while playing this game.'''

''Robot Unicorn Attack: Heavy Metal Edition'' is a free flash game from Adult Swim. As the name implies, it's a DarkerAndEdgier version of the insanely popular ''SugarWiki/RobotUnicornAttack''.

Set in a FireAndBrimstoneHell, those who break the many laws of this place have their souls transferred into Robot Unicorns, powered by numerous pentagrams to get the {{Unobtainium}} ore the world needs for its magickal experiments. But then one got the idea to make a clean break for freedom, knowing perfectly well he couldn't possibly escape, but hellbent to take as much as it down with him as he possibly could. If you fail to dash through a pentagram or hit the wall, you explode in a fireball of agony and are transferred into a new Robot Unicorn. Flaming imps oversee your escape, and the choirs of the damned pound along to the beat of your heart. Again, [[EndlessRunningGame you know it is hopeless, perhaps even futile, to even comprehend escape]]. But at this point, you're too far gone to care. [[EndlessGame All that is left is to run and destroy]].

[[{{Metalocalypse}} Oh, and it may just be the most brutal game ever]].

[[http://games.adultswim.com/robot-unicorn-attack-heavy-metal-twitchy-online-game.html Play it here]].

Like the original ''SugarWiki/RobotUnicornAttack'', it is also available for the {{i|OS Games}}Phone for necro-tracking on the go. Unlike the original, you can play it without looking like a [[CampGay Girly Man]]. Fun-fact: this game originally debuted on the iPhone before it appeared on Adult Swim Online.
----
!!WE CLAIM THIS PAGE FOR THE HIGHLORD. GOD BLESS THE PAGE OF THE HIGHLORD.

* AndIMustScream: The unicorn exists in this state endlessly.
* AmericanKirbyIsHardcore: Parodied.
* BottomlessPits: The entire world is one if you fall off the bottom of the screen.
* DarkerAndEdgier: It's less cheery than the original.
* DifficultyByAcceleration
* EndlessGame: It's an old style 'get the highest score' game.
* EldritchLocation: The background has floating islands ''with tentacles!''
* EvilCounterpart
* FireAndBrimstoneHell
* HaveANiceDeath: (Inevitably) failing in different ways gets you different messages. Crash into a wall? "Your future holds nothing but pain." Smash into a pentagram? "You have collided with your dark fate." Fall off the screen? "Your blood stains the soiled ground".
** "Press Z to chase your demise again." "Press Z to relive the horror."
* HellishHorse
* HellOnEarth: About the closest description to where this monstrosity takes place.
* HeavyMithril: Not only does the ''Music/HeavyMetal Edition'' apply, it's the exclusive subject of Music/BlindGuardian.
* MadeOfExplodium: See StuffBlowingUp.
* MindRape: The music is designed to brainwash you into playing for longer.
* NinjaPirateZombieRobot: Well, a Robot Unicorn at least.
* NintendoHard: The general consensus is that it's harder than the original version.
* OneHitPointWonder: Yes, the leaders of this kingdom are that cruel.
* RandomlyGeneratedLevel: After the first two platforms, the platforms are randomly generated.
* RatedMForManly: In contrast to the previous game.
* RealSongThemeTune: "Battlefield" by BlindGuardian.
* SceneryGorn: FireAndBrimstoneHell, anyone?
* [[SoMyKidsCanWatch So My Boyfriend Can Play]]
* StuffBlowingUp: The aforementioned stars, and you.
* SuperSpeed: It speeds up leading to...
* SurpriseDifficulty: It accelerates continuously, making you work even harder and upping the chance of the unicorn exploding.
** DifficultyByRegion: The iPhone version of the original game is even harder than the Flash version, thanks to more unforgiving platform layouts.
* TearsOfBlood: In ''Heavy Metal Edition'' these are clearly visible on the decapitated head of your unicorn when you die.
** ''Flaming'' tears of blood.
----
'''THERE ON THE BATTLEFIELD HE STANDS'''\\
'''[[color:brown:DOWN ON THE BATTLEFIELD HE'S LOST]]'''\\
'''[[color:red:AND ON THE BATTLEFIELD IT ENDS...~!]]'''
----