power-ups and springs

I joined this program yesterday, but I have the love for IT and Tech so I decided to make a game. I created a simple pixel consisting of the run and jump! bundle. I also “added” a power-up, but I 'm not so sure how to make it. Help would be greatly appreciated. Thanks!

PS: I would like to learn thoroughly because this would most likely turn into a game (in flowlab) but nonetheless a game to which has at least 15 levels.

Hey PublicBroadcast,

What do you want the power up to do when you collect it?