Capsule J is an enemy and helper from the Kirby series, appearing in Kirby Super Star. It is notable for being the only Helper omitted from the game's remake, Kirby Super Star Ultra replaced by Capsule J2. It gives Kirby the Jet ability when inhaled. With help from its jet pack, Capsule J can hover around—though sometimes it may also use its jet pack as means of pursuing Kirby.

In Kirby Super Star Ultra, Capsule J is replaced by Capsule J2 both as an enemy and as the Helper for the Jet ability. The two enemies are identical apart from design.

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