Nice WIP. Procedural generation is difficult to implement and it looks like you had a really go start to it. I like your character sprites and the over all feel of what you put together. I enjoyed breaking it by spawning in like 50+ enemies lol
Would have been cool to see what you ended up with, this is a great start and I'm sure you'll be able to take what you learned from it to enhance future games.
Glad you posted what you had, rather then giving up.