Try Popful Mail, not sure it's what you're looking for but it's a fun game and a side scrolling game with RPG elements.
Also some of the Wonderboy games might be suitable, particularly the second SMS one.
GPD Win, GPD XD 64gb, PlayGo, RS-90, 3DS XL, DSi XL, GBA SP, GBBC Clone, Gameboy Pocket c/w screen mod, PSP Go
Medion Erazer, Toshiba Z20t, Dell Mini 9, Psion 5MX
Tons of other old laptops and tablets.....