Yoshi is first found in the factory part of the Lava Pits, where he manages to save Spawny from falling down a pit to his doom when Spawny falls out of Mecha Jr. after it is defeated. Because of this, Yoshi joins the crew on their adventure.
In-game, Yoshi is described as an Eggsploder, having great offense and decent defense and mobility, but Yoshi truely shines in destroying the enemies' cover with his area-of-effect abilities, allowing his teammates to attack the now vulnerable enemies.
Like Yoshi's Rabbid counterpart, his primary weapon is a Rumblebang, able to do high damage to enemies at long range, and his secondary weapon is a Rocket, able to deal large area-of-effect damage to multiple enemies at long range, as well as do large damage to their cover as well as damage nearby allies.
Unlike other heroes, Yoshi has the ability to perform a Ground Pound when he lands after performing a Team Jump, dealing large damage to nearby enemies and allies. His special abilities include Egg Beater, allowing Yoshi to attack an enemy that either moves during their turn or due to a forced movement ability, and Super Chance, which guarantees that a weapon's Super Effect will be inflicted for Yoshi and all nearby allies. His Super Chance can be used with Mario's M-Power to boost the attacks of both Yoshi, nearby allies, and Mario while increasing the chance of a weapon's Super Effect greatly. His Egg beater ability can be used with his Rabbid counterpart's Scaredy Rabbid ability because the said ability forces enemies to move away from the said rabbid character.