Take This, Baby! Newfound Majuub's Killing Light Ray!!

The fate of Earth dangles by a thin thread, as Uub finds out quickly that he is no match for Baby on his own. Buu steps in to save him, and morphs himself into Uub's body, combining each of their strength's into one brutal force. Meanwhile, the time has come for Goku to attempt to resurrect his long gone powers!

Synopsis excerpt via Kitsu.