スポンジ・ボブ: BfBB

Overall, it feels like there are many difficult stages. There are quite a few missions that even experienced action players can't clear without looking up a guide. Kelp Forest's race is especially brutal. Just finishing is a struggle, and having a time limit on top of that is nothing short of devilish. I barely cleared it with a guide, but I doubt anyone can beat it without hints (same goes for the sand dune race). Also, the stage where you have to deliver the iron ball to the goal is terrible. It's a shame because many other missions have a reasonable difficulty, but the race-type stages and the iron ball transport sections were just frustrating.