I was super hyped to try this one out, as I really enjoy these kind of puzzle games (did a few myself), and it did not dissapoint! Levels were cool, introduced new mechanics in a simple way, then threw them into more complicated solution to ease the player into harder levels.
Graphically and sfx wise the game looks and sounds cool, that said, next time make sure your sound effects are the same base volume, as the explosions felt (and pretty sure are) more loud than everything else in the game.
One snazzy way to give a little more omph to your menu screen, if you would like to, is to make it basically level 0 and instead telling the player to press a, tell them to do right, and the mouse would slide into the steps, picking up the cheese and starting level 1. This way you can instantly establish a base theme and have a cool interactive menu at the same time! This just a tip though!
Overall, amazing game with an evil last level.