Thanks a lot for playing! I just worked on the sound, so I'm sure others could have more specific comments, but your feedback is greatly appreciated and will be put into consideration. A lot of it came down to time(the level designer wanted more landmarks, but we couldn't get the art assets in time, and same with enemies). Great point about the progression for the final upgrade by the way!
For my own sake, I'd love to know your thoughts on the music/SFX and whether anything stood out to you good or bad.