It's all timing; you just get a feel for it. You have to jump while on the springs at a specific time.
Do you mean how high you jump? Depending on how late you press the jump button on those spring platform determines how high you go, so you want to jump as late as possible on them to go super high.
I'd say to hold the up key around the same time you start going up. If you hold it too early, you'll go even lower than you would normal
You’ll eventually get a feel for when to jump, it took me a while to first get the timing right, but I would say your best bet is to try about when the ball is getting into the air
(copied from discord announcement)
The migration of IL runs from Red Ball Category Extensions has been completed. ILs are now hosted on the Level leaderboard of each individual game in the Red Ball series. The RBCE IL board will remain up for a few days until everything has been archived, but no