Nickelodeon SpongeBob SquarePants - Battle for Bikini Bottom

Bubbles do all the heavy lifting here. SpongeBob's entire combat vocabulary is blown out of soap: a spinning bubble bash to break robots open, a bowling ball you roll into switches and enemies, and a guided cruise bubble you steer into targets from a distance. It's a small idea, but Heavy Iron built a whole platformer's worth of puzzles around it, and the fact that the weapons are literally made of nothing is a better joke than most licensed games manage.

The structure is pure 2003 collectathon, unapologetically. Plankton's robot army is loose, golden spatulas are scattered across themed hub worlds, and Mr. Krabs will happily sell you more of them for shiny objects swept up along the way. Jellyfish Fields, Rock Bottom, Downtown Bikini Bottom and the rest each hold their own set of tasks, and the game keeps count of everything on a tally screen that will not let you forget what you missed.

What keeps it from being filler is the character swapping. Patrick throws things, including freeze-dried enemies and giant melons, and doubles as SpongeBob's bowling pin in co-operative set pieces. Sandy has a lasso for grind rails and swing points, which gives her levels a different rhythm entirely. Each has a limited enough toolkit that the level design has to be specific about who it's asking for, and the stages built around one character rarely feel like the others with a reskin.

The writing is the part that survived best. Heavy Iron got the show's cast to record, and the incidental dialogue, the Bubble Buddy cameo, the tiki heads that explode into confetti, all of it sounds like the series at its peak rather than a studio approximating it. The level geometry is blocky and the camera occasionally fights you on narrow ledges, which was true of nearly every mascot platformer running on this hardware.

It went on to become one of the most speedrun games of its generation, largely because its physics quirks are generous and its sliding movement is more flexible than the designers intended. That afterlife says something. A tie-in built to sell on a cartoon's name ended up being played to death for reasons nobody involved planned, and the 2020 remake exists because enough people refused to let the original go.