Talk:Echoes/@comment-33290287-20171121003636/@comment-4148373-20180821032145

That's mostly due to Koichi's personality, I think. Echoes Act 3 almost certainly has more powers, but Koichi never discovered them (as far as we know). It could be that he's simply assumed the Freeze was the only ability Act 3 had, or he just never bothered to investigate further. Echoes' dialog before unleashing the Freeze for the first time might give us clues, but we can only speculate as to what they mean.

Mind you, Koichi clearly figured out something between Part 4 and Part 5. His Stand stats shifted, with his Destructive Power going up, while most other stats decreased. That something could just have been shifting between different Acts, but that doesn't really explain where his Destructive Power boost came from. Nor does Stand atrophy, as can be seen in Star Platinum, explain it.