How cool. Did you create all of the graphics and animations yourself? Respect! Like "Spacewar", I really like the simplistic style, but still everything is very consistent and feels really nice and thoughtful.
I found the fights a bit too easy or had no real issue. I think I only got hit once. Maybe the enemies could have one special attack, but on a relatively long cooldown.
I enjoyed the random lines the enemies were saying.
Maybe instead of the enemies dropping food randomly, there could be some kind of container I can hit, which then drops it.
Would also be cool, to actually go through any of the randomly displayed doors and end up in random level.
I didn"t understand the title screen and why there is a bus driving...but it looked cool and exciting.
Keep up the great work!