I really like the progressive learning, adding a switch to each new scene and slowly increasing the difficulty. The graphics, as in your previous games, are excellent for the game style, and are consistent (i.e. it's not a mish-mash of graphics styles and genres). Your games are always of a really high standard and fun to play, and this game carries on that tradition.
My 2 gripes; first the colours are quite dark (background and platform/obstacle) and hard to see in a well lit room. Second, and as others have mentioned, is the lack of key bindings to switches. My mouse co-ordination is severely lacking, and I end up missing or hitting the wrong switch when things get hectic.
But otherwise a great game for this game jam.