I wonder if we will come across a monkey with maracas in CT:WT Brazil?
But Amigo isn't a Brazilian. Amigo (and her sister Amiga) is from the fictional village of Maracas Village from unknown country but it looks like Mexico.
Also Amigo wears a Mexican sombrero, a red neckerchief, a green vest, and blue jean shorts, reflecting a stereotypical Mexican aesthetic so most likely he's a Mexican.

His friend, Linda, is the one who's probably came from Brazil.

And if you based it by the game title, Samba de Amigo, the game itself actually has almost none of Brazilian samba music.
What its music actually is Latin and Pop Hits. So despite the its title, the games feature a mix of global pop, dance, electronic, and general Latin-inspired tracks (such as "Macarena", "La Bamba", "Aserejé / The Ketchup Song", or modern pop like Ariana Grande and Kesha) rather than traditional Brazilian samba.
Even its two popular theme song are not a traditional Brazilian samba.
https://www.youtube.com/watch?v=DszPJgIr76Qhttps://www.youtube.com/watch?v=vVXNQqb8R4wBellini's "Samba de Janeiro" is a Eurodance dance-pop track while Vamos a Carnaval is a general Latin-pop-inspired dance music.
The correct title for the game may be "Latin Pop de Amigo" but I guess "Samba de Amigo" sound much cooler and ear-catching.