Digit Commando

Your fellow crew members of SS Hoonose have caught on that you have a numeric power source, a power source only limited by the numeric ability of those that wear it. They turn against you, draining your power. You must survive as long as humanely possible, by shooting things and punching numbers into your keypad.

I didn't realise it was 48 hours as opposed to 72. Neh mind. Very unfinished and unpolished, but playable :)