In preparation for the launch of Immortals Fenyx Rising next month, Ubisoft has teamed up with the creators of Adventure Time for a special crossover trailer.

In the video above, we see Adventure Time's Finn and Jake getting lost outside the land of Ooo, meeting a dangerous Cerberus along the way. Fenyx soon swoops in to save the day, which is very lucky indeed.

At present, it's unclear whether this means a full, in-game crossover is on the way – could we see some Adventure Time costumes or in-game quests? – but Ubisoft has teased that "another Adventure Time surprise" is coming soon.

The game launches on Switch on 3rd December, so we're sure we won't have long to wait to find out. If you're interested, we were recently treated to more gameplay footage as well as confirmation of the game's file size.