This is really cool. It's great to see what you can make with a bit more time. I especially love the music - thanks for making it available - but the art is also great and I'm going to pick through those files now (thanks for making those available too!). The tiled background solution works really well.
Obviously, I want a longer game. Ha!
Bug List (v1.1.1 Windows):
• A couple of the elevator doors are buggy - I can walk behind the closed doors or exit without pressing E. Balcony 1F is particularly bad.
• If I go to Service Elevator 1F from the bathroom I walk behind the doors and then the game gets stuck (effectively frozen) as "E" doesn't work. I think I had to restart twice and then I just gave up on using that door altogether.
• The Exit To Menu option doesn't seem to work from the Esc menu.
Suggestion List:
• Pop up "J" on the first enemy because I read the game page when the game launched but only played it today so I had forgotten what the keys were and had to look it up (I only saw the controls listing in the menu later on).
• I'm not quite sure of what to suggest here but I was so bad at the jumping. I got a bit better when I figured out how the game wanted me to jump but it wasn't natural to how I was trying to jump. (I think it is that I'm trying to jump at 45 degrees, whereas the game sort of wants up(?), and the hit box is too big or the jump arc is too small or something so I end up jumping into enemies/missiles and getting stuck on pipes?)