Thank you so much for this detailed feedback! :) Glad the air mechanic clicked quickly after the first moments. It's short because I only had 18 hours over 6 days, but I had planned a lot more...
You're right about Owlfred's sprite, it does stand out from the rest... this is due to the time constraint as well.
Happy you liked the music (made by Merulon btw) and SFX! Thanks for the honest note on the voice lines too. This is actually why I added the "Skip Intro" and "Skip Outro" button, so yoou would not need to here it all over again. I'm really happy the theme idea worked for you!