|Level||Tennis: Spectator only
Boxing: Coach only
Baseball: Teammate only
|CPU Rank||Standard Difficulty|
He only competes as a Baseball Teammate.
In Wii Party U, Guillermo is in Standard Difficulty.
- In Super Snow Sliders, he is in 8th place, traveling a distance of 36 yards.
- In 2-Player Button Smashers, he and Delilah hold 7th place with 10 points.
Names in Different Languages
Japanese: ギイェルモ (Giierumo)
- According to the Wii Sports Club files, Guillermo's Internal ID is 045.
- He appears as a Staff Ghost for Neo Bowser City in Mario Kart 8, known as Nin★Guille, since the name can only store up to 10 letters.
- According to his Ghost profile, he's North American.
- However, he was replaced by Rui in Mario Kart 8 Deluxe.
- In his Wii Party U artwork, he seems to be playing Space Zappers.
- In the data files of Miitopia, he's listed as Young.
- His height and weight values are default (64).
- In Wii Party U, he appears as P4 in the preview video for Do U Know Mii?.
- Guillermo also appears in the preview videos for Domino Tally and Snap Judgement.