I like the concept, I hope you develop the game a bit further some day!
It would be very interesting (in the actual game) if you give the player reason to choose one or the other, like how critical hit favors the shooter, but jam disadvantages him.
If you can find the time, would you please check out our game as well?
Our twist of the theme is that a critic tries to play your unfinished game, and you fight from inside the computer to make him like it. Hope you'll like it!