Nitrome Must Die (formatted on the title screen as Nitrome Must Die!!!!) is a flash game made by Nitrome. It is their 100th game, which the game proudly states in its startup.

The protagonists Austin Carter and Justin Bennet hate Nitrome, believing they make terrible games. Deciding they can't stand it anymore, the two meet up to destroy the company. Outside Nitrome Towers, Justin crashes into some trash cans, revealing two guns. The duo grabs the guns and enters Nitrome Towers on a quest to kill every living thing there.

The game is a platform shooter where each of the 100 floors of the tower is a level, and the player must kill all enemies on the floor before they can go to the next one. The floors are in sets of ten, with most of them in a random order, with the exception of the two "Challenge Levels" on each set, and the boss floor at the end. The game can be played in singleplayer or multiplayer.

Tropes found in Nitrome Must Die

• Abnormal Ammo: The various weapons can result in guns firing bubbles, barrels, live penguins, farts and letters of the Nitrome logo among other things.
• Adaptational Villainy: Many enemies are characters who were heroic or otherwise neutral in their source games.
• Alien Blood: Non-human enemies bleed a different color depending on the enemy, with it usually being the color of their body. Even for red enemies, it doesn't exactly resemble blood.
• Attack Its Weak Point: The Mecha-Saur boss has a small, yet distinct glowing spot on its back, which is the only place where it isn't invincible.
• Bad Boss: The Nitrome Boss allows his employees to be abused, with a set of "motivators" seen in the background of one floor being torture devices, and the lower bosses whipping the workers.
• Bloodier and Gorier: While it's all Alien Blood, most of the enemies were originally from games that had none at all. The first enemies being from Jack Frost makes this particularly noteworthy, as in that game, the player can only stun enemies, not kill them.
• City with No Name: The main characters' hometown isn't revealed. But, considering who made this game, it's safe to assume that Nitrome Must Die is set in London, the UK.
• Continuity Cavalcade: You go through the 100-floor Nitrome building killing enemies (and some that weren't enemies) from many of the Nitrome games up to this one.
• Defeat Equals Explosion: Almost every boss in the game goes out by blowing up, with explosion effects crowding the screen.
• Disproportionate Retribution: Austin and Justin going on a rampage through Nitrome Towers just because they made bad games.
• Early-Bird Cameo: The protagonists from Nitrome's game Rainbogeddon appear as enemies, even though the game hadn't been released yet.
• Elite Mooks: The employees at Nitrome Towers have more complex movement compared to the other enemies you face, have more health than usual for the game, and they can use the same weapons you do.
• Evil Versus Evil: Austin and Justin's murderous rampage against Nitrome over making bad games paints them as a Villain Protagonist duo, but considering how employees are abused in Nitrome Towers and even wild birds outside are shot, it's hard to say they're much better.
• Excuse Plot: The story is minimal and is only a pretext for the destruction of Nitrome Towers.
• Extendo Boxing Glove: The Sucker Punch weapon has a boxing glove on a spring extend from your gun, dealing a lot of damage to any enemy it hits.
• Fartillery: One weapon in the game fires deadly fart clouds that damage any enemy in contact.
• Giant Mook: The trolls from Square Meal serve this role, being large, slow enemies that take a lot to bring down.
• Historical Villain Upgrade: Nitrome is portrayed here as outright evil, with their employees being abused.
• Hoist by His Own Petard: The Molotov weapon inflicts severe damage on anyone who touches the flames, even their own users. The Fireball weapon can also hurt its own user, though it's less likely to kill them compared to the Molotov.
• Law of Inverse Recoil: The mini gun and machine gun have massive amounts of recoil, which can push the player back. On the other hand, shotguns, rockets and other artillery doesn't have the effect.
• Malevolent Architecture: There's plenty of spike pits, with some rooms featuring conveyor belts or temporary platforms that try to force you into them.
• Meet the New Boss: If the ending is anything to go by, a few days after Austin and Justin destroyed Nitrome and became wealthy, they decided to use their newfound funds to create their own game studio, but would become bad bosses themselves.
• Mook Maker: The Mr. Gobbles enemy constantly spawns smaller creatures that are added to the floor's enemy count. In one challenge room, a single Gobbles is the only enemy at first, with it spawning many enemies by the time the player is able to reach it.
• Mooks: Various characters and enemies from previous Nitrome games appear as the hordes of enemies the protagonists mow down, often by large numbers.
• More Dakka: The Minigun weapon fires a hail of bullets at a more rapid pace than even the Machine Gun, making short work of most enemies if they stand in its way.
• Mounted Mook: One enemy type is a boss riding on the back of a purple pig from the Twin Shot games. Killing the pigs makes the riding bosses behave like normal.
• Platform Battle: The final phase of the fight with the Nitrome Boss involves trying not to fall off floating platforms as Nitrome Towers explodes.
• Self-Deprecation: It's a game where you destroy a fictionalized version of the company that made it.
• Side View: Everything in the game is shown from the side.
• Spikes of Doom: Spike pits and walls are featured often, and they inflict a lot of damage on impact, especially if you can't get off them.
• Start My Own: In the end, Austin and Justin decide to start their own game studio after destroying Nitrome and looting them.
• Swiss-Army Weapon: Your gun can, depending on the weapon currently picked up, fire out almost anything and serve various roles, even melee.
• Symbol Swearing: Austin and Justin swear frequently in the game's intro and (to a lesser extent) ending, but all of it is replaced by symbols.
• Turns Red: The bosses change behavior as their healthbars get lower. The first boss alone, the nose from Snot Put, starts to attack more aggressively and rapidly when its health is low.
• Zerg Rush: Some rooms will have a large number of weaker enemies attacking the player. A late game Challenge Room, for instance, has over 100 blue slimes the player needs to kill, all of them heading towards you.