Designing a full-sized game for a five-inch screen is about smart choices, not...

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 about smart choices, not just shrinking everything. You focus on touch-first controls that feel natural in small spaces. Portrait mode often works better than landscape on phones