Aside from looking like a factory built console, the HandyDuo is capable of playing both NES and SNES games, without having to replace / remove any parts. Video after the break. Click here for more pictures.

Under the hood of the HandyDuo are components of a RetroDuo system with an integrated PSOne screen, and a pair of 4250 mAh batteries to juice it up.

[via TechnabobBenHeck]