im a guyver fan sorry though i haven't seen or read anything on rider blacks feats but from what I've seen the guyver 1 do in its anime(manga's a better source for figuring out what it can do) it can pretty much dice up zoanoids(that im pretty sure were said to be tougher than a tank) in seconds and can probably tear apart blacks armor like its salami. the guyver units were designed to be the greatest weapon in existence in its respective universe. oh yeah cant forget its mega smasher cannon which stopped an energy attack that would have annihilated most of the tokyo area when it was in its gigantic form which boosts its abilities.