Super cool game with a really fun core gameplay loop and GREAT music! The stealth mechanic actually felt cool and fun unlike most stealth mechanics I play which I feel more annoying than engaging. The art is nice and the game has a nice flash aesthetic. And an upgrade system is always appreciated!
My only notes are:
1. Gun shot sound is way too loud
2. Sometimes NPC movement can feel unpredictable/unfair. I think a small grace period after being seen where you can kill the NPC and get away with it would help these situations.
Overall though this was a great experience! Good job!