Choco Rio Grande: He feels hot due to the warmth of the sun.
Solution
Choco Rio Grande:Tiffi gives him a cookie sombrero.
Full list of appearances
Reality:
Mario is a minor character in Candy Crush Saga. He is a mole and encountered in the 47th episode, Choco Rio Grande. Before introducing level 681, he feels hot due to the warmth of the sun. His pool is also leaking liquorice due to the heat. After completing level 695, Tiffi gives him a cookie sombrero.
He also seems to wear a shirt featuring a colour bomb.
In the 111th episode, Marzipan Mine, he uses a pickaxe to excavate the ground for searching a rock candy.
In the 253rd episode, Crumbly Cave, he and Tiffi mine for candies and gems within the cave.
Due to April Fools 2020, almost all episode characters (but eight) have been absent from the game. A few other characters make occasional appearances in events.