Changing Gravity

Help Requests
1

I need help. I am making a game and i need it to where your player can change gravity after going through a portal. When you go through the portal, I also want to keep the jump heights, but reverse.

Can somebody help me here? This is the game I’m working on: Marble Jump Fanale
press on the 2nd lv. im trying to test it there.

2

In the help section, there is a game that shows how:
https://flowlab.io/game/play/721987

3

Thx! Helps a lot!