The Philips N20 is a classic pong system offering the 6 games of the widely used General Instruments AY-3-8500 dedicated chip. The black & white games are: Tennis, Football (soccer), Pelote Basque (squash), Exercice (squash practice), Tir au pigeon (skeet) and Tir de cible (shooting on moving target). The two last games are only playable with the optional light gun.
The most particular feature of the N20 is its typical 70's cosmetic design, especially the controllers. They don't look like any other controllers but play surprisingly well!
The Radiola JET T02M and the Schneider Telelude are exactly the same systems (except for the case color) sold under different brands beloging to Philips. The N20 will be followed by the N30, offering different games (no more shooting games).