How to enter fever time mode

I am making a game to earn falling coins and avoid falling obstacles, as shown in the game example below. When a certain score (for example, score 100 ) is earned, I would like to keep the screen switching at “fever time mode” and the coin dropping scene lasting only 10 seconds. Can you tell me what logic I should use?
Event condition : Score > 100 ?
Event action : change to scene?

Hi, did you try:

It should work.

Instead of switching to an entire new scene, you could also just change the background image and switch back to the normal mode after 10 seconds.