LOL that's pretty funny.
OK so, cool idea for a reverse space invaders type shooter. Needs to have some kind of limit on shooting since you can just hold down the trigger and blow everything up... like maybe the gun could heat up and jam if you shoot too much or something?
Other than that, it's pretty cool so far from what I can see in the limited version.
I'm guessing you may have harder prisoners later that shoot back and stuff like that?
Gory games are always fun