A fanmade artwork of a Shinobi Dog character named Smash (スマッシュ) from Japan-exclusive series Gensei (幻世) [eng. Phantom World] which was available on Compile Disc Station magazines from 1988 until 2000, which contained previews, games and bonus stuff like short cartoons (mostly involving Puyo Puyo/Madou Monogatari)

Games he appeared in (to my knowledge)
* 幻世快盗伝 | Gensei Kaitō Den (PC-98)
* 幻世喜譚 ディスクサーガ３ | Gensei Kitan Disc Saga III (PC-98)
* 幻世牌遊記 | Gensei Haiyuki - an obscure Mahjong game with Gensei characters in VS style (Windows 95/98)
* 幻世快進劇 | Gensei Kaishingeki - a Zelda-like game where he explores caves, forests and mazes in search for a "Legendary Ero Book" which turns out to be a photo album of a clown named (I dunno... Gero?) (Windows 95/98)

Gensei, Smash © Compile, D4Enterprise