Negima!?: The Great Battle of Mahora☆Contract Execution was released in Japan on October 26, 2006 by Marvelous Entertainment. It was released for the the series' main manga.
After defeating the newly-awakened demon at Kyoto, Negi decides to follow his new-found rival, Kotarou. However, when the TV broadcasts an explosion at Osaka, Negi, Kotarou, and some able-bodied students go to investigate.
This game came out for the Nintendo DS handheld system and was never released or localized outside Japan. It's an adventure strategy game. The game cartridge came in a standard DS case.
A CD was released as a pre-order bonus. First edition releases of the game included with a Makie Sasaki Armor Neo Pactio Card.