Because this is a PS2 game, playing it on a mobile device requires significant processing power. While you may want to use PPSSPP, PPSSPP is a PSP emulator and natively cannot run PS2 games.
Tiny Size: One square inch, easy to embed to devices.
OpenWrt: Easy to code; super stable, three years no reboot.
Low Cost: low cost, less than 1watt, unmatched performance.
Interfaces: Hardware support USB, Ethernet, SD, I2C, SPI etc.
OpenSource: Both software and hardware, totally FREE
Long Life: Keep production over 10 years, fast email support.
Because this is a PS2 game, playing it on a mobile device requires significant processing power. While you may want to use PPSSPP, PPSSPP is a PSP emulator and natively cannot run PS2 games.