Collection of side stories, published for the most part after the main series had already ended serialization. 

Vol.1 contains an extra chapter (not included in the MF Bunko edition): 
- Tantei Phantom (探偵ファントム); Gekkan Comic Nora 1993-11

The life of Gen Tokishima changes forever when a giant, 300 metres tall, humanoid spaceship lands in front of him and his girlfriend. At its helm is a woman: Karion the space pirate, come to Earth with the intent to abduct him. She reveals him he is the “Mapman”, the last descendant of an ancient race of people who wandered throughout the universe: he is the key to finding their mysterious tresaure, hidden somewhere on the planet more than 20000 years before… 

Contains 8 extra chapters: 
- Bangaihen: Chou Kidou Gurajion (番外編　超機動グラジオン); Vol.2 
- Prologue (プロローグ); Vol.3, kakioroshi 
- Fairy Master (フェアリーマスター); Vol.4 (*), Gekkan Comic Nora 1987-07 
- Puzzle 2: New Abe Nanatsu no Shiren (パズル2　ニュウ・エイブ七つの試練); Vol.11, Gekkan Comic Nora 1991-09 
- 8 Jigenme no Jugyou (8時限目の授業); Vol.15 (*), Animedia 1988-07 
- Intermission 1, 2, 3 (インターミッション 1, 2, 3); Vol.17, kakioroshi 

 (*) not included in the MF Bunko edition

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