Hazy Maze Cave Wet-Dry World Tiny-Huge Island (feel like people will defend this one) And worst of all, Tick Tock Clock
On top of that there are levels that I wouldn't call flat out bad, but ones that I didn't enjoy or had a lot of problems like Shifting Sand Land, Rainbow Ride, Snowman's Land or any underwater level. Big Boo's Haunt has some crappy parts to it, but honestly the good stuff in that level is so good that it more than makes up for it and it's one of my favorites.
The stages I really enjoyed are Bob-omb Battlefield, Whomp's Fortress, Lethal Lava Land and the castle hub world in general.
I disliked tick tock clock and rainbow ride. I didn't have any serious issues with any other levels. ---
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