Thank you so much for the review! I will consider everything you said in the full release, with some additional content!
More enemies, story mode with an ending and bosses, more bosses, a wider story or a dialog system with CHRIS, I'll make CHRIS the good guy (for now), better controls, more complex map, probably randomly generated rooms, and an upgrade system for CHRIS and his skills. Multiple endings in the story mode would be nice, and a plot twist at the end.
Thanks again and have a nice day!