He-Man/ThunderCats defeated villains and Cringer runs into He-Man's arms thrilled his best friend is alive. The three rush back to the ship desperate to get back to Eternia before it is too late. The four Ancient Spirits of Evil have arrived on the doorstep of Castle Grayskull while Skeletor and Mumm-Ra look on. Randor has assembled an army alongside the Thundercats and the combined heroes attack the giants. Man-At-Arms, Tygra, and Panthro assemble a cannon of combined Eternian and Thundarian tech to attack the Spirits while the others buy them time. Inside the Castle the Sorceress summons the Castle's defenses to
Mega Man & Bass King to join with Bass in this venture, promising that the two would be invincible together. Proto Man appears and immediately destroys these plans. Wily then demands Bass to destroy Proto Man, but Bass is unsure. Proto Man tells Bass that although he is a strong robot of free will, he can never defeat his rival because he has nothing for which to fight. Bass doesn't care and forces Proto Man to leave, saying that he will still destroy Mega Man to prove his cause. Mega Man returns home where his sister Roll presents him a letter from King, who