Before joining Mario, Mallow suffered from low self esteem and was a bit of a crybaby at times, however as they journeyed together, he built up his courage and proved himself to be a levelheaded member of the party on numerous occasions (such as when he held Mario back from unwisely attacking Bowyer). Mallow becomes very emotional multiple times in the game: namely, when he fails to apprehend Croco and return Frogfucius' coin, when he finds out he is not a Tadpole and Frogfucius is not his real grandfather, when he finds his real parents' wish for him to come on on Star Hill, and when he finally meets his parents. Mallow looks up to Mario as a role-model and admires his jumping skills, much like the other tadpoles do, which was how Mallow was raised. Even Mallow's own father, King Nimbus, enjoys the sight of Mario's jumping abilities.