I think you guys should add some starting acceleration period for bubble/butterfly boost, because with instant acceleration and inertia after you release space button, as it's now, it's possible to boosting infinitely with some high level pants just by spamming space button. I reached upper screen border with violium pants (and couple camp fires ). Or maybe solve this in other way - make this techs "eat" in 1st millisecond as much energy as can't be restored in 1-2 seconds with your current pants.
You can manage the same with durasteel armor. Just tap the space bar, one second intervals and you will eventually make it to space.
