Howdy, I'm stuck on level 1. It doesn't offer a level 2. I'm not sure if that's the current end to the plot or not~
Level 1 breaks very easily too, if you click the gun while recharging. You die. This breaks the entire scene and means you need to manually restart.
It also costs 2 stars to upgrade power, but you start with 1 star. I used that to buy a ball gag and it soft locked me until I cheated.