User blog comment:Bionicleboy3000/Metal Sonic: The most overpowered robot in fictional existence?/@comment-3200919-20130107223109/@comment-115265-20130107234405

That's true. But only depending on the circumstances.

Recall in Sonic Heroes that Metal Sonic copied data while in the Chaos-copied liquid form. Depending on the opponent, I'd say it's pretty hard to "counter-attack" a puddle.