Well then you should give my game a try! In my game you play as a character named Magnibus (name derived from “magnas manibus” meaning big hands), a man with huge fists, as you punch, throw, and destroy the waves of robots trying to kill you.

But how does this use the theme you ask? After each cleared area, the game requires a sacrifice of one if your max hp points before you can progress to the next level, allowing for fewer mistakes in later areas down to eventually 1hp in the final area. This provides the game with a good difficulty curve as well as a great challenge towards the end.

And of course, heres the link: https://ldjam.com/events/ludum-dare/43/magnibus