Starman

Starman is a rare type of enemy native to Dream Land. They are currently the only enemies in the series that bestows the Hi-Jump ability when inhaled. They resemble tan, star-shaped creatures wearing a lengthy blue superhero cape tethered together by red brooch.

A sticker of a Starman also appears in Super Smash Bros. Brawl. The sticker boosts the Launch Power of Kirby, Meta Knight, and King Dedede.

They also make a brief appearance in the sub-game Kirby Brawlball in Kirby Mass Attack.

Kirby's Adventure and Kirby: Nightmare in Dream Land
Starmen are usually encountered walking around peacefully, and may jump when least expected. They are also seen heroically gliding around the sky at times.

In addition to being a common enemy, one can also be seen in the Butter Building Museum, and others are summoned by Kracko during the boss battle of Grape Garden.

Kirby: Squeak Squad
Starmen appear the same they did as they did in previous installments and behave the same way. In the 3rd level, Cushy Clouds, Mecha Kracko often summons Starmen to battle when Kirby faces him.

Kirby Mass Attack
Starmen appears in the sub-game Kirby Brawlball as a board element. Their appearance remains unchanged from previous games. In fact, some of their sprites are the same ones used in Kirby: Nightmare in Dream Land and Kirby: Squeak Squad. Though there are new animations that were added.

Kirby's Return to Dream Land
Starmen act much like they do in other games, but they now fly in a bit straighter path and are a much rarer enemy. They also appear in the Hi-Jump Challenge.

Trivia

 * The name Starman may reference the Powerup of the same name from the Mario video games. It also shares a name with an enemy from the EarthBound/ Mother video games.
 * In the sub-game Megaton Punch in Kirby Super Star and its remake, some Starmen can be spotted in the crowd. They're hard to see, though.