After the party kills the first set of goblins, a strange light appears in the sky. Down lands a flying craft and out come weird aliens. "We are the Star Lords of Xeenu, you have passed the test". "Cool". They fly into space where a psychic whale is all "Protect us from the Griim, oh Fight Guys" (cause that's their name now). They do. Lots of explosions and slow motion. Oh no, a super bomb known as Fred is going to go nuclear! No way dude, they totally stop it... With a double-neck guitar! "Epic solo bro" "Thanks". It turns out a space otter starts to dance wildly in front of them. "Step aside, I can totally understand him". "No way". "Yes way". One of the players is totally fluent in Interpretive Otter Dance because waitforit... He's totally actually an otter in disguise. The otter is all "bet you can't break a planet... With your head". Player tries. Natural 20. The otter crowns him king of the galaxy, gives him epic raptor-eagle mount. Credits roll. Cue fifteen minute epic guitar solo. End.
Did it. You're welcome.