Sorry for the 2.5, but the controls are slippery to where it's not a challenge, it's too hard. I've seen many MANY pixelated platformers with no tutorial, and it's becoming a Newgrounds stereotype. Make games with sound, good controls, not all retro and ?-bit, and we can be better.
I like the slippery effect when the character is running. It makes it more challenging. I'm quite lazy myself so I didn't finish the game.
I think the jump sound was actually detracting a little from the game, like It wa it was not in harmony with the rest.
Finished the game
Controls are fine for me. The game's just broken. I collected all of the spheres in every level and only had 22 for each one. I can't complete the game at all, as I can't past the space level. On top of the lack of music, this game is really nothing special. Just a broken boring 9 bit platformer.
The bug you found has been fixed. The game's still just as hard though.
No music, shitty controls, boring and repetitive gameplay without any background. Sry, but the only reason why I give at least 1 star is the fact that falling into another level instead of dying is kinda nice.