Excellent puzzle! The difficulty is well increased though the 12 levels of the game. There's a good variety of items to interact. The controls are proper, specially because of the movement of the character. The music matches perfectly with the 8-bit style, but it gets a little bit annoying after a while.
PS: levels 11 and 12 really got me in some parts -- had to restart several times.
I like it, its fun but too short, should have more levels and more challenge, but its good anyway.
I enjoyed this! Like someone said below, it reminds me of donkey kong jr. More levels please...
This is great. I love the way it doesn't overstay its welcome.
My only complaints are lack of an undo function to trace backwards through your steps and the annoying pause when a switch is doing something or something is falling. I get that everything is supposed to go one step at a time, but those things should just happen faster.
That said, the second might not be a concern if the first were implemented.
I like how you took a minimalist concept and expanded upon it.