Athena No Hatena?

Trigger Heart Exelica is a shootem up game released for the Sega NAOMI released in May 2006 developed by SEGA and published by Warashi.

The sequel to Touch De Uno!

Tetris Giant also known as Tetris Dekaris is a puzzle game produced by SEGA and published by SEGA and the Tetris company released in 2010.

Club Kart Prize is a racing prize game released for the Sega Naomi 2 in 2003.

Shakatto Tambourine! Motto Norinori Shinkyoku Tsuika!! is a music based rhythm game produced and developed by SEGA in April 2001

Shakatto Tambourine! Powerup Chu! is a music based rhythm game released and produced by SEGA in November 2001

Shakatto Tambourine! is a music based rhythm game released and developed by SEGA in November 2001

Dinosaur King - Operation Dinosaur Rescue is a card based fighting game released and developed by SEGA in 2005

Dinosaur King - D Team vs the Alpha Fortress is a card based game released and developed by SEGA in 2005

Super Major League '99 aka World Series '99 is a baseball game produced and published by SEGA in September 1999