Designing a full-sized game for a five-inch screen is all about smart...

https://paxtonssmartperspective.cavandoragh.org/why-does-my-mobile-slot-game-hide-help-and-rules

Designing a full-sized game for a five-inch screen is all about smart priorities, not just shrinking everything down. You need touch-first controls that feel natural on small screens and decide if portrait or landscape works best for the experience