Hop Step Jangou
Don't let the title screen scare you into thinking it's a Cho Aniki mahjongg game. Instead, you play a Ryu look-alike as he tracks down a childhood friend, playing against girls in strip mahjongg matches along the way. The mahjongg in the game isn't too difficult; it tends to give both you and the opponent decent hands, but it mostly favors you with what you need to go mahjongg. Strip scenes are scrolling CG.