Oh, you might have to click on the game area first to give it focus. Also, make sure you aren't holding shift or have caps lock on. The controls are case sensitive because I programmed it silly.
Decent game with a bunch of neat mechanics. I like the nerdy premise. My only nitpick is that the song always restarts when the level does, which gets repetitive for levels where the atom can get destroyed quickly
Fun game and art and good use of theme. I like how it is a puzzle/platformer game with a unique mechanic. My one nitpick is that the sounds for jumping on different blocks are all the same, which gets repetitive to listen to.