Thanks for the kind words! Repetitive is definitely a word we've heard a lot about the game. We made an effort to improve on that during the late submission period, but oh well, lesson learned! The enemies walking through walls was actually just a design choice we made. Adding collision code for all the enemies might have slowed down the game a bit, but also we believed it helped make the game more of a challenge.
We appreciate your feedback! Thanks for playing! :)