Overall nice.
The goods and the bads.
Goods:
Puzzle solving style game.
Original concept
Controls and physics.
Learn to play intro w/audio commentary.
Bads:
Music (Even the old nintendo games switch the tunez occasionally)
Floors (Staying on top of the ground is a must. It made it hard to guage the jumps etc.)
No sound effects. (Even if you could turn the music off, without sound effects it just doesnt feel right.)
Level graphics (A smidge more detail would be nice, i.e more trees, rocks.)
Dont stop, make more!