I was just looking through the roms of numerous Yong Yong games and I noticed the coding before the game name is almost identical between them. As well as this, Thunder Blast Man's is the same. Would that suggest that Yong Yong coded Thunder Blast Man or stole the engine from it? Not only this, but the rom of Rockman 8 calls it Rockman 99 in the rom, Sonic 3D Blast 5 is called Sonic 5 and Thunder Blast Man is called Thunder Blaster HY.