From WiKirby, your independent source of Kirby knowledge.
Bomb-Cutter is a Power Combo of the Cutter and Bomb abilities in Kirby 64: The Crystal Shards. It allows Kirby to quickly throw an unlimited number of explosive shurikens straight ahead.
Upon tossing the shuriken, it disappears from view, but nevertheless travels straight in a horizontal line until it hits an obstacle or an enemy, upon which it reappears for a split second before exploding. Upon getting hit, the enemy will be stunned by the shuriken before exploding. This move can also be used in the air and underwater, with repeated usage allowing Kirby to hover in the air for an extended time.
Like the other abilities in Kirby 64: The Crystal Shards, this ability does not change Kirby's physical appearance in any way.