Thank you for rating and playing my game! Yeah I heard my friend say that too about it being too short when he playtested it.
If i'm going to make more levels , I might as well make a whole game with it with other generic fps main characters to punch. The one who has too many guns to use them all , the one with powers , the one with throwables and maybe one who has a lock on to head skill. It'd be fun to explore how the player would try to survive from all those cheats and skills as the mob enemy with your trusty mind , body and powerful punch while using the environment to the best of your abilities.