Parody viper56

[STUDIO HUAN (Raidon)] PIPER GTS

VIPER Series Official Artbook III

VIPER Series Official Artbook II

(C65) [Graf Zeppelin (Ta152)] Variable Vipers (Variable Geo, Viper) [English] [EHCOVE]

[Digital Tambourine (Hiiaru, Kiyoyuki)] lifesentence (Viper) [2004-10-22]

VIPER Series Official Artbook II

[Naruho-dou (Naruhodo)] Guruguru Sentou (Viper GTS) [English] [doujin-moe.us]

(C60) [Megami Kyouten (Aoki Reimu, Nonomura Hideki)] Waku Waku Mousou Land!! (Various)