In order to beat his arch-rival Sonic the Hedgehog and eventually claim world domination himself, Metal Sonic sought to become strong enough to achieve his ambitions. To this end, he staged Team Sonic's, and later Team Rose, Team Dark, and Team Chaotix's adventures in Sonic Heroes so he could collect both theirs and Chaos' data in order to become Metal Overlord, his most powerful form to date. In order to reach this form, Metal Madness proved to be a necessary step during this transformation.