The time is now. The hero is you.
A Massive Multiplayer Crossover in the form of an MMORPG made by Cartoon Network. Planet Fusion, a living planet made out of a green, gooey substance, has attacked Earth, and it's up to you, a bunch of animesque versions of characters from Cartoon Network franchises, and many, many other people to stop the alien invaders. The game has a simple but effective equipment system arming you with Guns, Swords, Bombs, Guitars, Frisbees, and other items to defeat the opposition, while giving you shirts, pants, and shoes to protect yourself, while masks, helmets and capes/backwear are just for show.
However, the biggest change to the MMO formula came with Nanos, miniature versions of Cartoon Network characters that are gained on level-up instead of stat bonuses. You can have three nanos with you at all times, and each has three abilities, of which each can only use one, granting you a variety of different layouts and choices, such as having Numbuh Two provide super speed, the ability to warp back to specific locations in dungeons, or increased money gain upon defeating enemies.
After a long stint of no significant updates (beyond the disabling of the chat feature in June 2013), Cartoon Network Games finally announced the game's closing on August 23rd and granted all players max levels and unlimited funds until the game's final day on August 29th.
There's also the wiki for your browsing enjoyment.
There's also a spinoff set in the same continuity as the main game called FusionFall Heroes. Instead of being an MMO platformer like FusionFall, it's an overhead 3D action game ala Diablo with both a single player and online multiplayer opponent that lets you choose between various Cartoon Network heroes and take them into combat. Here's a preview. Here's the game.
FusionFall closed on August 29th of 2013. Despite its cancellation, the game still has a massive cult following, with various petitions requesting it to be relaunched. After the petitions didn't lead to an official revival, more earnest attempts to start private servers came to light in 2015. Originally, FusionFall Legacy aimed to start a private server with a rebuilt version of the game. In 2016, the FFL revealed that, with some help, they were able to create a new server with the original FusionFall client, as it was right before the first anniversary event in 2010. Closed alpha testing for the new private server with the original client, FusionFall Retro, was set for late-January. With the change of plans, FusionFall Legacy's focus shifted from being a private server for the original version of the game to a fully reimagined version of FusionFall, with Retro serving as a stopgap until Legacy's full release.
The game itself can be considered a who's who of Cartoon Network's original characters. Here is a list of series represented by characters in the story:
- Adventure Time (Characters playable in FusionFall Heroes)
- The Amazing World of Gumball (a Gumball Watterson Nano is available through a passcode) (Characters playable in FusionFall Heroes)
- Ben 10 and Ben 10: Alien Force (The NPCs carry their Alien Force appearances) (Characters playable in FusionFall Heroes)
- Dexter's Laboratory (Also in FusionFall Heroes)
- Codename: Kids Next Door
- Courage the Cowardly Dog
- Ed, Edd n Eddy
- Foster's Home for Imaginary Friends (Cameos in FusionFall Heroes)
- Generator Rex
- The Grim Adventures of Billy & Mandy
- Johnny Bravo (Characters playable in FusionFall Heroes)
- Johnny Test (Even though Cartoon Network only aired the show)
- The Life and Times of Juniper Lee
- The Marvelous Misadventures of Flapjack
- Megas XLR
- The Powerpuff Girls (Characters playable in FusionFall Heroes)
- Regular Show (Characters playable in FusionFall Heroes)
- Samurai Jack
- The Secret Saturdays
- Sym-Bionic Titan
- Time Squad
- Toonami (The characters, (like TOM) themselves, not the shows from the block)
- Animesque: Done to pretty much everyone to a slight degree in an attempt to unify art styles, but done most obviously (which is to say, really obviously) to the Powerpuffs and to Dexter. Reaction to the Puffs has been mixed, but the new, older, richer-and-Tony-Stark-like Dexter... uh, doesn't have any female detractors, at any rate.
- Crisis Crossover: With the threat of Planet Fusion assimilating the Earth, everyone, good or bad, is working to prevent the catastrophe.
- Big Damn Heroes: Constantly
- The Cameo:
- Silhouettes of Ed, Edd and Eddy and Samurai Jack are seen at the beginning but they don't play a role in the story. Likewise Coop and Jamie's silhouettes show up later but they don't notice the carnage going on outside.
- Charles Darwin Middle School, Endsville, and Orchid Bay also make cameos.
- Dance Battler: Dee Dee.
- Genki Girl: Dee Dee.
- Nice Job Breaking It, Hero!: The heroes think they've stopped the fuse spores and the source from where it's coming from. Turns out it was a beacon and by blowing it up they've brought Planet Fuse right to them.
- Not Me This Time: While Mojo had intended to do a scheme at the start of the story, the Fuse beat him to it and he has to stop Blossom from socking him to warn the heroes of the incoming threat.
- Prequel: Shows the starting invasion of the Fuse.
- Pungeon Master: Numbuh 2, but what else is new?
- Teeth Clinched Teamwork: Dexter grudgingly has to partner with Mandark.
- Took a Level in Badass: Mac and Bloo can fight, apparently.
- Know-Nothing Know-It-All: Bloo (as usual).
- What Happened to the Mouse?:
- Numbuh 2 asks this to Blossom and Bubbles about Buttercup but Numbuh 5 cuts him off.
- Likewise, Numbuhs 1, 3, and 4 are absent when the treehouse is attacked, yet they show up in the game itself.
- Your Princess Is in Another Castle: The group managed to stop the source of where the Fuse pods are coming from and start to celebrate...then Mojo crashes near them followed by Planet Fuse appearing over Earth. Uh-oh...
- Abnormal Ammo: Mushroom spores to teddy bears, depending on the weapon.
- Allegedly Free Game: It was until April 19th, 2010, when it became just a Free Game.
- Antagonist in Mourning: After giving Buttercup amnesia in a deadly fight, Mojo Jojo displays a... surprising amount of guilt.
- Anti Poop-Socking: Upon gaining a certain amount of experience, both experience and money gained after that point is reduced by 50%, then dropped to 0%. It resets to 100% the following day. They've since removed the 0% feature, but it will still drop to 50%.
- Artistic Age: The Kids Next Door look older but it's unlikely that they are over thirteen. Their designs just have more realistic proportions for eleven or twelve year olds than they did in the cartoon.
- Bears Are Bad News: Did we mention the bears wield a jackhammer for an arm?
- BFS: The Rex Nano has a skill literally called "Big Freakin' Sword".
- Child Soldiers: The KND, Urban Rangers, Powerpuff Girls and, of course, the players. Now they're teenagers, though that doesn't make it much better. Did they raise the age limit to 18? There WAS that plot point in Codename: Kids Next Door about some KND members staying in the KND after turning into teens...
- Crouching Moron, Hidden Badass: Billy, who actually helps out A LOT in the final stretch of the game.
- Darker and Edgier:
- The whole game was slightly darker than the cartoons it's based off of, or at least those that weren't already dark.
- Musical example: In the CGI intro that showed up when you first accessed the site, a portion of an instrumental version of Thursday's "Jet Black New Year" played in the latter half. In the original version, the first half had a portion of an instrumental of Mastodon's "Crystal Skull".
- Death Is a Slap on the Wrist: All it costs you is half the stamina of your current Nanos and cancels any benefits you might have had active (gumballs). It helps that Death is a character from one of the shows.
- Demoted to Extra: Mordecai, Rigby, Gumball and Darwin are all reduced to Nanos in this game as to actual Non Player Characters, possibly due to time limits or trouble with designing animal characters (as with Lazlo).
- Disney Death:
- And don't forget the brave sacrifice of Runty. So what's for lunch?
- Drama-Preserving Handicap: Megas has been trapped by fusion matter, hence why Coop can't just blow the crap out of Fuse's minions. Ben's Omnitrix also doesn't work due to interference. The rest can be chalked up to simple Gameplay and Story Segregation.
- Eldritch Abomination: Lord Fuse. Even more so when you find out he's the literal mind of the living planet causing all this mess.
- Fembot: Computress.
- Gameplay and Story Integration: Defeated Lord Fuse, but wondering why he's still around next raid? Simple really. He's actually the physical avatar of the Genius Loci of Planet Fusion, so while defeating him is severely annoying, he just regenerates.
- Giant Poofy Sleeves: Blossom
- Gonk: Eddy
- Improbable Weapon User: Any fan of the Kids Next Door knows that this trope is going to come into play at one point or another.
- Magic Skirt: The Powerpuff Girls wear them. There's also several versions girl characters can wear. True to the trope, they never go high enough for anything to be seen. Failing the trope, this only applies when the camera is straight. Aim it up and it no longer works. It also fails horribly when using a scooter-type vehicle, as the seated position of a character causes the skirt to be oriented vertically. However, all that's there is a blackened waist area, as if they were trying to make shorts but just got lazy and painted the skin.
- In one of the later updates, you can see shorts under some of the shorter skirts if you aim the camera juuuust right.
- Massive Multiplayer Crossover
- Misplaced Wildlife:
- In a way. In the future, Eduardo hangs out in the cul-de-sac, and Samurai Jack hangs out in the junkyard.
- It may be to play up the crossover element and it's not unusual to see characters from several shows hanging out in one location, but Juniper Lee is in the middle of Nowhere while Grim holds court in her hometown of Orchid Bay.
- Due to the lack of Camp Lazlo characters, others fill the void (e.g, the Toiletnator and May hang out in Camp Kidney, Flapjack is in Leaky Lake, and Gwen can be found on Pimpleback Mountain).
- Mythology Gag: Any fan of the shows the game represents will see at least five of these for each series.
- Off-Model: The Nanos, intended to have the cartoonish look that most of their NPC counterparts lost.
- Plot-Relevant Age-Up: Dexter, the Powerpuff Girls, and the members of Sector V are in their (pre)teen years.
- Progressively Prettier: Debatable. Compare Flapjack◊ in his original cartoon to Flapjack◊ here.
- Rule of Cool: The only reason Samurai Jack is within walking distance of Megas XLR in the Future Zone.
- Shout-Out: The game's unique naming system opens up quite literally several universes brim full of possibilities in regards to this trope, such as Xan Fireant.
- One of the NPC characters is named after The Powerpuff Girls and Foster's Home for Imaginary Friends creator, Craig McCracken.
- Before the game went to free to play, players were free to choose their own names, provided that they passed inspection. More obvious references to other media wouldn't make it through, but if what you named your character after was obscure enough (or obscure enough to whoever was in charge of approving your name), you were set. It's also an easy way to indicate characters that were made before the Free To Play switch.
- Starfish Aliens: They're all made of Fusion Matter, which is basically a green ooze that merges with whatever it doesn't destroy to make monsters, and some of them are warped clones of NPC's. Oh, and they exist to help their homeworld eat planets.
- Temporal Paradox: The nanos were created with information the player (if they joined before early 2011) brought back from a Bad Future, which (as of February 16, 2011) no longer exists, because everyone was better able to fight Fuse now... because of that technology from a time that doesn't exist anymore.
- Timey-Wimey Ball: Until February 2011, the opening segment took place in a post-apocalyptic future the player was sent to due to a Deedee-induced time travel accident. After that, the opening was just basic training and the Timey-Wimey Ball seemed to have been removed—except there were still references to the Nano tech coming from the future. And CN's offical in-universe reason for the new intro segment? Due to the heroes' efforts, that future no longer exists.
- Warp Whistle: Flying Monkeys, courtesy of Mojo Jojo, and the KND's S.C.A.M.P.E.R. (which warps you between regions instead of just areas within the same region).
- What Does This Button Do?: The mistress of this trope, Dee Dee, sent you into the future because of this in the old tutorial.
- Zettai Ryouiki: All three Powerpuff Girls.
- Follow the Leader: Basically a Lighter and Softer Diablo.
- Synchronous Episodes: Takes place at the same time as the original game, showcasing what the main cartoons were doing during the battle.