From WiKirby, your independent source of Kirby knowledge.
Needle-Bomb is a Power Combo of the abilities Needle and Bomb that appears in Kirby 64: The Crystal Shards.
When using the ability, Kirby takes the appearance of a Gordo and gains the ability to hover briefly. As a Gordo, Kirby moves slowly. After some time, Kirby explodes, sending all eight spikes outwards in a straight path for a short distance. While in Gordo form, Kirby can harm enemies by moving into them, though, due to his slow movement, this may not be a feasible option. Doing so may also cause Kirby to detonate early.
Like the other abilities in Kirby 64, this ability does not change Kirby's physical appearance in any way until it is used.