Hi, thanks for the feedback!
Do you think the lack of control was perhaps a performance issue? Did the game run smoothly for you? The jetpack wasn't necessarily designed to maintain a fixed altitude indefinitely, pressing the space bar adds upward acceleration (so if you are already moving upwards you'll move faster and if you're falling you will just fall slower at first until you change directions in vertical velocity). I sort of pulse the space bar rhythmically whilst playing (eg. 2-3 seconds on, 2-3 seconds off). Its a bit more chaotic that way, true, but that is the nature of this game jam! :)
If your game wasn't running smoothly for whatever reason, then I can imagine the controls would be more frustrating, and I'm sure there is plenty of room for me to optimise the game, but this is just what I managed to make in one week..
If you're willing to give the game another chance I would love to hear if you manage to control the Rocket Cop a bit better.
Was it mainly just the controls of the jetpack you found awkward or other controls as well?