The cyan R.O.B.'s favored Arm Rotor represents Ando Kensaku, a robotic character with a cyan-colored face whose head spins around whenever he is surprised.
The default Mr. Game & Watch minion's favored Judge references the "Kensaku! Panel 9" minigame featured in And-Kansaku.
The stage and music track represent PictoChat, which features an online connection to play similar to And-Kensaku.
The Electric Floor hazard references the "Bomb Survival" minigame in And-Kansaku where choosing a certain word with hits on Google will send an electric charge to an explosive.
Other trivia:
This spirit's Support type references Ando's role in And-Kensaku as the player's guide.
This spirit's Electric Resist ↑ ability references the "Bomb Survival" minigame in And-Kensaku where the player who doesn't detonate the electric charge to the explosive is the winner.