The art looks awesome! The retro style is well made. The sound effects were also really satisfying. I liked the premise of the story, though I didn't have much choice over being a thief or not; if I wanted to finish the game, it seemed like I had to take the boot anyway. I think it's alright for the premise that EVERYONE becomes a thief in there, though it would also be cool saying 'AH! I got you, I'm not a thief like you said' type of thing. The player controls were a bit strange since it seemed like the terrain was slippery, I suggest increasing the acceleration and deceleration. I also noticed the player was jittering while moving, I think the camera is moving smoothly between fractional values and with pixel art it becomes jittery; to fix it you can round up the global position of the camera. The attacks were a bit difficult to land since the enemies could arrive from every direction and the attack was limited to right and left. It would be useful to being able to attack all around the player. Also the npcs got stuck time to time into things, I'd suggest you to use some type of pathfinding; Godot is really good with it since it has already A* pathfinding implemented.
Overall really interesting submission!