if you’re just trying to play old games, nearly all of them are capable enough to run emulators up to ps1. pick the one that supports the controls you want or is in the form factor you find the most comfortable.
so many people on r/retrohandhelds fall into the trap of turning these shovelware devices into their hobby and owning like 15 of them. you need one… the rest are e-waste.
it doesnt really adhere to any pixel grid. to be fair many pixel artists also dont adhere to a grid, but ai REALLY doesnt.