Cute little game. Presentation is nice. Ending to wrap it up is nice (although a little simple with just a sudden cut). Some more interesting puzzle objects as levels progress might be nice to spice things up (maybe scenarios where you have other objects you have to blow up to defeat enemies or objects you have to laser through or bounce off to change the colour to hurt certain enemies?). Art and music is very cute.
And oh, only made in 6 hours! Okay, I take back the bit about too simple, that's awesome for just a few hours. Nice cute style, your stuff is cool.