A Super Mario Thing - 75 - Starry Nights (Regular Exit)
Level author: Argumentable
This stage is pretty tough, but the regular exit is mostly fair so long as you're patient, apart from a few questionable things- the blind koopa around 0:48, for example, and the hammer bro within the boo circle around 1:48. The flying fish section is also a little annoying to deal with, though in hindsight I'm having a hard time saying whether it's genuinely unfair or not, and that vibe is sprinkled throughout much of the level besides.
Still don't like boo circles, though, even if they're used more creatively in this level than most others I've seen.
Also, I'm not a fan of the powerup stinginess here- it makes the difficulty feel artificial and contrived, in a way.
Oh, but this is one of those rare occasions where I feel Touhou music isn't a terrible choice. I've seen much worse usage :b