It's actually pretty good, okay the idea is nothing amazing
but you've worked the levels up so the limited boost is the key. obviously
you gotta make that visible in the animations to make it cooler. The sideways jetting boost
seemed a bit of a question mark. If I can jet sideways, why not upwards? And who the hell designed this rocketpack so it blows a fuse if i push the button too long? If this is a rule you are dead set on maintaining, you could have a dramatic entrance to explain it, show the character crashlanding hard so his backback is damaged or something?
"obviously you gotta make that visible in the animations to make it cooler."
Huh? make what more visible? Boosting?
" The sideways jetting boost
seemed a bit of a question mark. If I can jet sideways, why not upwards? "
When you move to the left there is no right-gravity to give you resistance. You can press x to try to ascend, but it's too heavy for the boosters to make it go upwards. It's a air-drop ground unit, not a jetpack unit.