Marvelous Sapphire

''"Marvelous sapphires are remarkably hard and thus often used to hit people with when a regular rock isn't within reach." - The description found in eng.translation''

A Marvelous Sapphire is a pickup you can find in Cobalt's Classic Survival, Waves Survival, and Story Modes. In Classic Survival, it could be converted to volts, but in Waves Survival and Story Mode, it is converted to volts upon being picked up.