how to pause while playing?

[gamer girl bath water]

Okay, I know I can pause by leaving the window one way or another. But I'm wondering if there's a way to access some sort of pause screen while in the middle of a level. I would like a way to leave the level and go to a different one or adjust the settings or whatever, without having to close the entire window and start over. This concern has increased even more since I've unlocked Eternal mode. When I'm satisfied with the Katamari I've made in Eternal I want to be able to save my game instead of just being like "Welp, that's it!" and shutting the game down.

A detail: I don't have a controller, I just use my keyboard., If I need to go into settings to assign the key to pause, please let me know (and let me know how, pls)! I still haven't figured it out on my own :(

Thanks!

[gamer girl bath water]

UPDATE: I just figured it out!!! it's the tab key!!!!! so happy