Light is a unique Copy Ability of Kirby's in several respects. The ability first appeared in Kirby's Adventure, and since then has appeared only in the remake, Kirby: Nightmare in Dream Land. Aside from its rare appearance in the series, the ability rarely appears within these two games, too, and is only obtainable in a handful of stages (useful in only two stages). To further set off this power from others, it is one of the few limited use abilities, like Crash, having only a single discharge.
This power was also the first and so far only ability to be both non-offensive and purely utilitarian. No damage is caused to enemies by using Light. While the Light ability only appears in two games, its function has been reused. Spark, typically when used in conjunction with Kine, can illuminate a room in much the same way and Kirby gets a similar effect when he combines Spark and Bomb in Kirby 64: The Crystal Shards. In Kirby Super Star, Kirby: Squeak Squad, and Kirby Super Star Ultra, Kirby can use fiery attacks, such as the ones from Fire, to light candles to light an entire room until the flame goes out. In Kirby: Canvas Curse, some courses have lanterns that illuminate the entire room, much like in Super Star. In Kirby's Return to Dream Land, several levels merely have candles as items that can be carried. In Kirby's Adventure, it is usually used to light up a room where something may be hidden where there was once shadows.
Kirby tosses a small ball of light that expands, lights up dark areas, and reveals hidden doors. This move does not damage enemies.
Dark areas can be spooky! This lets Kirby set off fire-works! It works only in the dark!
Brighten those dark corners! *Can only be used once.
The only time Kirby can get Light not in a dark room is in the first stage of Yogurt Yard. However, since there are no dark rooms in the level, the ability is completely useless.
Light Kirby is depicted with sunglasses in Kirby: Nightmare in Dream Land's ability icon, despite not having a special appearance (a hat) in-game.