OKish platformer game, despite the awkward controls. The game is split into 3 areas:

Area 1: Easy, you just need to be patient.
Area 2: Moderately difficult and demands occasional precision jumps and timing. I died about 106 times.
Area 3: I only played about a third before deciding to quit. It demands a lot of precision jumps and timing and is probably only for hardcore players.

I didn't finish the game, but I can recommend it to hardcore platformer enthusiasts when it's on sale. Note that to ensure your progress is saved, you must pause the game and go back to main menu. I tried Alt+F4 once and lost some of my progress.

Death Fungeon is a great little platformer with smooth controls and fun gameplay. Wall jumps take a bit of getting used to, and the cauldrons for hiding took me a while to figure out, but overall it's a solid game. My only real complaint is that it's unfortunately quite short!