I’ve had a play with a Power Apps does Minesweeper does Halloween game – it’s not as easy as it looks. Download here..
https://globaleducation.blob.core.windows.net/powerapps4kids/HalloweenHunt.msapp
Here’s a vid on how to import it https://powerplatformlearn.newzenler.com/courses/microsoft-power-apps-from-zero-to-hero/contents/5f43feb371ac0