Ra Thor

Ra Thor is the penultimate boss in Super Adventure Rockman that was created by Dr. Wily using the advanced technology that he discovered in the ancient pyramid while working with the supercomputer Ra Moon. When Wily learns that Ra Moon has been using him all along in order to accomplish his mission of building a new army with which to take over the world (Ra Moon is, after all, only a computer), Wily rebels against his new partner and orders Ra Thor to destroy Ra Moon. However, Ra Moon has somehow managed to reprogram Ra Thor without Wily's knowledge and the powerful robot rebels against Wily, attempting to kill him. Mega Man, however, intervenes and saves his archenemy's life. Ra Thor proves to be faster than Quick Man and tougher than both Wood Man and Hard Man, but Mega Man manages to defeat him using a combination of the acquired Robot Master weapons that he has and the Proto Shield. After his defeat, Ra Moon activates the New Yellow Devil.

Trivia

 * Ra Thor is referred by Wily as the New Wily Number 1 (新ワイリーナンバー1).