Flame thrower (Flame Chomp)

A Keronpa Ball is an obstacle found in Super Mario 64 and its portable remake, Super Mario 64 DS. Keronpa Balls are tiny black spheres that hover in place a tiny distance off the ground. In the DS remake, they appear identical to Fire Chomps without the trail of fire behind them, and they fire at a much slower pace compared to in the original game. They usually line the edges of pathways. Keronpa Balls are motionless and harmless until the player character passes by, in which case they expand to about twice their size and shoot a tiny fireball that chases him for a short period of time before snuffing out. If hit by the flame, the player will run around uncontrollably while steadily losing three health wedges, although they will still be able to jump. In the DS version, Yoshi is capable of spitting out fire if he ingests a Keronpa Ball.

Keronpa Balls appear in the following levels:
 * Vanish Cap Under the Moat
 * Hazy Maze Cave
 * Shifting Sand Land
 * Dire, Dire Docks
 * Bowser in the Fire Sea
 * Wet-Dry World
 * Tiny-Huge Island
 * Tick Tock Clock
 * Rainbow Ride
 * Bowser in the Sky

Trivia

 * There are two Keronpa Balls in the downtown area of Wet-Dry World that, due to an error in the level design, are unable to spit fire. Even at its shallowest point, the water level in the area is high enough that the two Keronpa Balls are submerged, rendering them harmless. Through the use of a water-raising/lowering glitch, the water can be lowered to an abnormal level, which activates them. These Keronpa Balls were removed in the remake.