I liked this a lot, and I understand why the screen is small with you aiming for an old gameboy game aesthetic. The graphics are nice, the gameplay is fun, it's tuned well as I had to pay attention to energy and it took me just enough time to figure out the controls where I wasn't annoyed but had a fair learning curve. As an audio guy, I'll say the music was great, and the sound effects were okay, but needed variation and rate limiting. For instance, if you dig yourself down and bounce off the walls really fast the audio gets a little too hard on the ears. Outside a few small things, great job!