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

https://sizedesk.com/what-happens-when-a-full-sized-game-has-to-fit-on-a-five-inch-screen/

Designing a full-sized game for a five-inch screen is all about focusing on what matters most. You can’t just shrink everything down. Instead, prioritize touch-first controls that feel natural on a small display