10 MORE Bosses Removed For Being Too Hard

And finally, the iconic SpongeBob SquarePants-themed browser fighting game Super Fall Brawl allowed players to unlock Sheen - the title character from the Jimmy Neutron: Boy Genius spin-off series Planet Sheen - by first defeating him as a final boss in the game's Tournament mode.

However, players quickly realised to their immense chagrin that this was decidedly easier said than done, with countless players complaining that Sheen was simply too damn difficult to beat. In a game aimed primarily at kids, that's no bueno.

Rather than do the expected thing and simply nerf the boss to make him easier to topple, Nick inexplicably responded by removing Sheen from the game altogether, as both a boss and a playable character, along with his home stage House of Pain.

Passionate fans later modded the game to restore Sheen and his stage, though it wasn't until the release of sequel Super Brawl 2 that Sheen would be officially reintroduced into the series as one of its playable characters upfront.