Game Gear consoles in Japan
From Sega Retro
There should also be a Nazo Puyo version? "なぞぷよ(ゲームギア本体に＋１パックとして同梱)" from what I can tell from Google Translate that's what it means, and it seems to be the only game on Sega's list with that string attached to it - Andlabs 11:00, 26 May 2012 (CDT)