Movement is mostly fine, but when using the right-click explosion ability after picking up the bomb, the game always lags out for ~1.5 seconds, which makes double jumping with it as if it were a regular shot impossible. That said, the changes it makes to how gravity affects you last until you are grounded again, so triggering it is still important for extending how far you can go with your regular shots-- without using it you don't have enough time to get off a second shot before you hit the ground but with it you lose only the tiniest bit of height each bounce if you do a good job of timing the bullets, and the initial bounce it gives you is enough to make two follow up jumps possible even on flat ground.