Spark Yoshi

Spark Yoshi (スパックヨッシー, Supakku Yosshī) is an original Yoshi transformation that only appears in Super Mario-kun.

On their way to Wart's Castle, Mario, Luigi, Yoshi and Toad find the path swarming with Sparks. As usual, Mario abuse of Yoshi using him as a human shield, making swallow a Spark and becoming Spark Yoshi. Mario kicks him foward, making him roll against the enemies, defeating them. Their journey comes to a halt when Clawgrip hits Yoshi with a boulder, reverting him back to normal.

The Spark Chaser in Super Mario Advance has a similar function to eradicate enemies on his path, aiding Mario.