The Game Boy modding community is popular right now, and one currently trending mod involves transplanting the circuitry of a folding Game Boy Advance SP (from 2003) into a non-folding custom shell.

The way I see it, think of the RG35XXSP as a ‘pro’ Game Boy Advance SP. The main draw with this device is its 3.5-inch screen size, as everything looks better as a result.