The game is fun to play. The, graphics are good but the sounds are better. I like the cute artstyle of the characters and enemies. I like how you added some small extra details (like the screen shake animations). The game is simple to understand.
However, you should make so that you can't just stand near the toaster and do nothing when you get so many upgrades. If i go into fullscreen, there are blue bars on the side of the game.
Ohter then that, pretty good submission :) .