I think you've got something pretty fun here. Reminds me of Bloxxorz but with a new twist. I agree with the other comment that lives are a bit limiting and I also ran into an issue where when I reached 1 life left on Level 3 the character locked up for some reason. I made sure I was focused on the window but it didn't work. Overall, it's a tad rough around the edges in presentation, but I really like what you're going for here. The song in the background gives it a very nice cozy vibe. Maybe try experimenting with some shaders in your next game; they can accomplish some nice stylistic effects when you get the hang of them.