>>149161741
>Has Metal Sonic ever had a high point to come down from?
You could argue Heroes, as he:
>Took over the Eggman Empire
>Played everyone like a fiddle
>Gained an extremely cool boss form (that sadly is cutscene exclusive)
>Gained an even more power last boss form
Yeah, he ended up losing to Super Sonic... but, he was the freaking last boss, not much you can do there.

From the right perspective, Sonic Heroes was his highest point.