Top 10 Hardest Levels In Platformer Games

Platforming is my favourite game genre, it's fun and interesting. But some levels are hard, near impossible.
The Top Ten
1 Tubular (Super Mario World)
2 Animal Antics (Donkey Kong Country 2)
3 Dam (Teenage Mutant Ninja Turtles)
4 Poochy Ain't Stupid (Yoshi's Island)
5 Grandmaster Galaxy (Super Mario Galaxy 2)
6 Stage 6-2 (Ninja Gaiden)
7 Death Mountain (Zelda II: The Adventure of Link)
8 Toxic Tower (Donkey Kong Country 2)
9 Champion's Road (Super Mario 3D World)
10 Meat Circus (Psychonauts)

Was surprised to see this item at the bottom.

The Contenders
11 World 8-4 (Super Mario Bros)
12 Hidden Last Cave (Cave Story)
13 Sacred Grounds (Cave Story)
14 Final Escape Sequence (Super Metroid Redesign)
15 Every Level (Kirby 64 and the Crystal Shards)
16 The High Road (Crash Bandicoot)
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