pretendo

A cheap rip-off "Nintendo" console/device that plays Nintendo or Nintendo-esque 8-bit games. Usually comes in extremely cheap packaging, is never found in retail stores, and runs on AA batteries with A/V outputs on the device.

dude 1: Dude, go play your Pretendo and shut up.
dude 2: I'll kick your ass at a game of Pac-Man...
dude 1: Mario Brothers.
dude 2: You're on.
dude 1: Well, as soon as you find it in this list of 76,000 duplicate games...