"ahem" its actaly is spelled "work".

Don't ask such things of a dev, he's busy building a game. Ask us!

It starts working after you reach a certain altitude, starting at 150k at level 1.

I personally find it useless. But then, I just use El Fuego and sonic boom to speedrun this game. It's the fastest way next to using the Super Hero body.

i meant on #4 boosters not stages

do you mean slingshot???

yes there is :m

??????????????