Royal Rainbow Road

"Royal Rainbow Road" is the 11th episode of Season 2 of In a Locked Room. In this episode, the gang goes racing again, this time in the Grand Multiverse Championship Prix. Meanwhile, there are two main subplots. Dr. Crygor and Professor E. Gadd battle against each other in an Invent-Off, while a certain plant hero explores the rooms in an unspoken quest. It is a sequel to "The Room of Mario Kart".

Official Description
''Welcome to the Grand Multiverse Championship Prix! Once again our heroes go back to racing against each other to see who wins the special Trophy! Meanwhile, Dr. Crygor and Professor Elvin Gadd battle against each other in a science-filled Invent-Off, while a sneaky Plant Hero explores for an unspoken quest to be accomplished at once!''

Allusions

 * Mario Kart 8 Deluxe - The whole episode is based on the game.
 * Club Penguin and Club Penguin Island - RPSN is a reference to CPSN, a fictional sports network that covered the Penguin Cup, and is set to appear in the upcoming Mt. Blizzard area. In addition, Aunt Arctic and Rookie appear as reporters for the network.
 * WarioWare: Smooth Moves - The Invent-Off originates from this game.

Trivia

 * The original name for this was "Rainbow Road 2000".
 * The title of this episode is named after a song by LONELYROLLINGSTARS, a cover of MKDD's Rainbow Road called "Royal Rainbow Road".
 * In fact, the part of the name "Royal Rainbow" reference the Katamari series.
 * This is one of the few non-special episodes in which the gang is actually outside the rooms, since this actually takes place after IaLR.