Hey, just played through the Mac version. Really great stuff here! Visuals are consistent throughout. I played on a controller and the controls were intuitive and spot-on. I never felt cheated if I got hit. I knew it was my fault. The atmosphere of the game is great as well, the color-palette is very unique and attractive.
The one thing I was provide feedback on is the sound-design. Most of it is perfect. Perfect. But there are a few sounds that don't seem to fit, like when Haiku lands. It doesn't fit the rest of his SFX. I also feel that hitting/destroying enemies could have a punchier SFX.
This is why we release demos, feedback! Of course, you should be really proud. It's going to be a great final game, and I wish you all the success possible. Thanks for making that MAC version work!