Nazo Puyo (literally "Mystery Puyo" in Japanese) is a puzzle game originally released for the Sega Game Gear in Japan. This is an entry in the Puyo Puyo series, known for its fast-paced gameplay and strategic puzzle mechanics.  Players manipulate colorful Puyo (gelatinous blobs) to match them and eliminate them from the board, preventing their stack from rising to the top.  As a Game Gear title, it likely incorporated features designed to be enjoyable on the handheld device.

Nazo Puyo (Japan)

Mortal Kombat 3 (Europe)