Sparks are spiky, minor ghosts that only appear in Luigi's Mansion. Sparks look like a red sphere with a pointy nose. They usually appear in groups of two, out of a door or wall. If Luigi touches one, it explodes and causes ten HP of damage (eventually they will explode anyway). If Luigi suckes one up into his vacuum, the ghost will explode inside it and Luigi will still take damage. Luigi can extinguish them by spraying on them the Water Element. If Luigi sprays them with Fire Element, the ghosts will explode instantly. Ice seems to not have any effect on them.