YMMV / FusionFall

• Big-Lipped Alligator Moment: The quest "A Grave Mission" is extremely strange, for multiple reasons:
  • First off, the quest is a level 29 mission... found in Eternal Meadows, a level 9 area that the player will have no reason to go back to after all its relevant missions are completed. On top of that, the object you need to examine to start the quest doesn't have any "!" and is not marked on the minimap, meaning you're likely to miss it even if you wander by. Good luck even finding this mission without a walkthrough.
  • Taking the mission requires talking to the gravestone of A. Kwest, a character who isn't from any Cartoon Network show. The ghost of Kwest explains his backstory, and requests you retrieve a rose from the Firepits infected zone.
  • After the player makes the continent-long romp from near the beginning of the game to near the end and back, Kwest and his lover pass on to the next world with one final gag, and none of it is ever mentioned again. Who Kwest and his lover were in life is never expanded upon.
• Crossover Ship:
  • In-game, Princess Morbucks has an unrequited crush on Ben Tennyson, and the prologue manga has Computress being very attracted to Professor Utonium. Not to mention the already existing Blossom/Dexter, and the new Dexter/Ben, Dexter/Numbah 5, and Frankie/Eddy. Who knows what else there is?
  • Player Character/Mandark. Seriously. That's Canon.
  • Dexter/Buttercup, which carries on from the old intro tutorial from hints made in older Cartoon Network site games (like Cartoon Cartoon Summer Resort 4 and Toon Hoops) and announcer spiels during late 90s show credits (apparently Dexter likes Buttercup because she's sassy).
• Fandom Rivalry: FusionFall fans had a bit of a rivalry with Toontown Online fans due to them both being kid-friendly MMOs by rival companies.
• Hilarious in Hindsight:
  • Some time before FusionFall came out, a fan called Bleedman started a doujinshi featuring an Anime-Styled version of the Powerpuff Girls and other Cartoon Network heroes fighting an Alien Invasion. Then Cartoon Network starts up a game featuring a bunch of Anime-Styled Cartoon Network heroes fighting an Alien Invasion.
  • The Gangreen Gang's appearance in the game is as a rock band a whole decade before Ace became part of Gorillaz.
  • In FusionFall, Demongo has inexplicably recovered from his apparent demise in Season 2 of Samurai Jack, and is pursuing his own goals as an independent villain. The same thing happens in the 2017 revival of Samurai Jack.
• Moment of Awesome: The appearance of Planet Fusion itself. It's a big green planet with lots of other planets glued to it. Look upon it and tell us it isn't one of the most metal things you've ever seen◊.
• Nightmare Fuel:
  • Dude... Jake isn't moving...
  • Some of the Fusion spawn designs are pretty unnerving for an E+ game, for example the bear with a jackhammer for an arm. The concept art on the website is even worse. It's basically a PG version of the Zombie Apocalypse with Evil Twins running around.
  • Eddy's in-game appearance is either Gonk or this. Or possibly neither. There's also the disturbing implications of the fact that he's the only Ed, Edd n' Eddy character you see in the future.

• Scrappy Weapon: The throwable weapons are generally considered the worst weapon category. Their single-target damage is abysmal, and while they have good multi-target damage, the general rarity of clumped-up groups of enemies makes their splash damage hard to exploit - and even then, rockets do that better while still having better single-target damage.
• The Scrappy: Johnny Test's presence in the game has not been well received. In addition to being from a fairly unpopular show in general, many people feel his presence is simply out of place because he's not a Cartoon Network original creation like every other character/show presented (though Cartoon Network did help fund the show's last few seasons).
• That One Level: While there are several potential examples, two take the clearest cakes in community hate:
  • The Catacombs are by far the most hated areas in the game, consisting of nothing but long, winding corridors filled to the brim with aggressive monsters. They're very difficult to navigate, especially if you don't have a fast vehicle to try and outrun the monsters with, and the area's missions outright require you to run back and forth across the entire two map squares the Catacombs take up. Said missions are also largely inconsequential to the main plot, consisting of the Chickens from Outer Space and Mutant Eggplants sending you to talk to the other faction and fight monsters endlessly. Fortunately, the entire area is skippable, if you're willing to make up the lost Fusion Matter by grinding races.
  • The Canopy tends to score high on "most disliked infected zones" lists, thanks to the difficulty in navigating it as well as its overuse of cannons.
• They Wasted a Perfectly Good Character:
  • With the inclusion of Juniper Lee there were also some interesting locations (Forgotten Falls statue) or other mentions (Te Xuan Ze Inc. in Endsville). These might have been world-building threads from the development team that were never really followed up on, or even explained.
  • More like "They Wasted A Perfectly Good Series", in some cases. Some fans feel like the inclusion of certain shows would've been better if certain characters hadn't been excluded. For example, Hoss Delgado, Fred Fredburger, and Jeff were included, yet despite their inclusion and references to Underfist in the game, neither Irwin or Skarr show up. (Even worse, the former of the two was mentioned, but never seen or heard from, almost playing this straight!)