It's cute. It'd be nicer if you didn't have to hold the inventory/shop buttons down, and I think there ought to be an option for a WASD control scheme. Other'n that, jolly good!
I'm constantly getting killed because I'll run too far while trying to irrationally keep away from the edges of an otherwise safe zone... because I'm worried about getting an arm pinched. I know it doesn't happen. It's a reflex.
That murderous extra turret diverted a tiny one onto me at 603 seconds, at which point I realized I was holding my breath. Would 5/5 just for the music choice. Nicely done!
thanks for nice comment, and i am working on the wasd thing to work