Before he allows Mario to pass Dimentio causes a malfunction in his systems, turning him against Mario. Once Mario defeats him he has a system meltdown and breaks apart. Mario then continues to collect the second Pure Heart. Fracktail is the largest characte in the Mario series also sharing this title with Wracktail. At the end of the flipside pit of 100 trials is Wracktail, Fracktails stronger twin. Fracktail references hooktail from PMTD