Tired of always losing to Super Rabbit Boy in their video game world, King Viking goes to the Secret Lands to find the Super Power Up that will give him super powers--Super Rabbit Boy must stop him, but first he must make it past goblins, ghosts, and other video dangers.

King Viking decides to find another planet where he can carry out his evil plans without interference, and everyone in Animal Town is delighted; then an alien appeals to Super Rabbit Boy for help and he blasts off to once again confront his enemy--but his level one rocket may not be up to the task.

Super Rabbit Boy's present to Moon Girl releases Queen Spooky and her army of ghosts, and Super Rabbit Boy is taken captive--so it is up to the normally evil King Viking (who does not like the competition of the ghost army) and especially his secret weapon, Robo-Rabbit Boy (switched to "Good" mode) to save Animal Town, release Super Rabbit Boy, and contain the ghosts.

Super Rabbit Boy gained his superpowers when, as a baby, he ate the magic carrot he found in the Wise Woods; now King Viking has built a time machine in order to team up with his younger self, Prince Viking, and prevent Baby Rabbit Boy from finding that carrot--so Super Rabbit Boy has to go back in time, and with help from an unexpected player, save his younger self and protect the timeline.

King Viking is doing a lot of evil plans at the same time so, with the help of Moon Girl and others, Super Rabbit Boy comes up with a plan to stop the supervillain's attacks.