Rockman Dash 2: Episode 1 - Roll-chan Kiki Ippatsu! no Maki

Included with the release of Tron ni Kobun, this game is a technical demo that serves as a prelude to Rockman Dash 2: Episode 2 - Ooinaru Isan (Mega Man Legends 2). These four missions precede the events of Episode 2, which made up the entirety of Mega Man Legends 2 for versions outside of Japan, though they are mentioned in the later game's dialogue.