From WiKirby, your independent source of Kirby knowledge.
Spark-i is the blue, diamond-shaped, electrical enemy seldom seen in Kirby 64: The Crystal Shards. Its external structure pulsates; the diamond shape itself is made of four distinct sections, all of which can expand and retract, protecting the Dark Matter-looking eye at its core. Like all standard enemies, its attack deals minimal damage, but unique to the Spark-i is in the firing of a rhythmic spark towards Kirby's last position, as a product of some sort of homing device. When ingested, Kirby gains the Spark copy ability.