Crystal

Crystals are what power 85 percent of Crash Bandicoot machines, for good or for bad reasons. Crystals are collected by finishing a level(except boss levels and levels after 25). Usually,you need to collect 25 crystals, although it's 21 or 142 in CTTR. Since Crash Twinsanity ,they've been called Power Crystals.

Appearence : Most Games, ones that don't are Crash 1 and the console version of Crash of the Titans.