I was playing deepworld recently, shooting around with one of my favorite of the new guns, The Steam Cannon, and quickly realized that the steam being released from the gun, matched the texture of the steam coming out of my jetpack. It was then that i came up with the idea that in deep world, the jetpack, should not only be a method of flight, but a weapon. It would make sense, as if the steam cannon can kill monsters, why couldn't a steam powered jetpack do too? It would also bring more realism into the world, and give first time users a weapon.
(Im not sure what you had in mind for the jetpack, but i was also thinking that it could be easily crafted rather than just given,
) Another idea, would be to give them the jetpack in the beginning, but allow them to upgrade it as a weapon later on.
Feedback is greatly appreciated,