Spark

Sparks are orb-shaped creatures who continually emit pulses and flashes of electricity. They are mostly found crawling around walls and ceilings and moving across wires. Sparks are the first in a series of enemies in the Mario franchise that are balls of electricity, including Li'l Sparkies and Amps.

Donkey Kong Jr.
Sparks first appear in Mario's Hideout of Donkey Kong Jr. Red Sparks (also known as Globes ) continue to circle their own platform, but blue ones can travel to other platforms through static particles. These Sparks are generated by Mario in order to shock Donkey Kong Jr., preventing him from saving his father.

In the Coleco Adam port, the layout of the stage has been altered and there are no blue Sparks. Instead, they have been replaced by dangerous green water drops that come from the mouths of spigots and cracks in the ceiling.

Donkey Kong (Game Boy)
In Donkey Kong for Game Boy, only one Spark appears in Stage 6-4, rotating clockwise at a medium pace around a small platform in the path of a Conveyor Belt. It has the same behavior as the Sniper and Sukōpī seen earlier in the game, except losing a life from the Spark displays an electrocution animation. Unlike other appearances, the Spark in this game lacks eyes. This game also introduces a more common wire-crossing successor.

Super Mario Bros. 2
Sparks also appear in Super Mario Bros. 2 as uncommon enemies, usually encountered underground or in buildings. They circle platforms, though some can hover in the air if a Mushroom Block is pulled out from beneath them. Sparks can be defeated by throwing an object at them or using a POW Block near them. Sparks can't be jumped on and can hurt the player's character by simply touching them. In the NES version, Sparks have red outlines around their eyes; in the SNES version and other subsequent remakes, they have yellow outlines as well as an orange outer body outline. If the screen scrolls while they are in a specific position, they automatically die.

Sparks changed slightly in Super Mario Advance. If the player is hit by one, they are knocked back and the screen flashes. In addition, an item called the Spark Chaser can be used to expel them from new jar interiors.

The Super Mario Bros. Super Show!
A Spark makes only one appearance on The Super Mario Bros. Super Show!, in the episode "On Her Majesty's Sewer Service". Having been dumped into the Tunnel of Doom, Mario and Luigi, while running from a Goomba, encounter a Spark that is quickly approaching. Mario and Luigi manage to avoid this Spark and the Goomba by creating a grappling hook out of a super spy hose nozzle and mini plunger; apparently unable to stop moving, the Spark and Goomba subsequently crash into one another, causing an explosion. In this appearance, the Spark featured does not appear to radiate any electricity.

Nintendo Comics System
Sparks are featured quite prominently in issues of Nintendo Comics System, appearing in such stories as "The Legend," "Bedtime for Drain-Head," and "A Mouser in the Houser." Like most enemies featured in the stories, they are shown to be intelligent and fully capable of speech.

Super Mario World 2: Yoshi's Island / Super Mario Advance 3: Yoshi's Island
In Super Mario World 2: Yoshi's Island and its Game Boy Advance reissue, Sparks are known as Piro Dangles. They emit fire instead of electricity and have faces similar to that of Fryguy. Occasionally, their fire temporarily goes out, revealing that underneath they are white spheres. During this time, they are harmless. In Super Mario World 2: Yoshi's Island, Piro Dangles can only be found in a secret room in Burt The Bashful's Fort. There is also an unused variant of Boo Blah that has a Piro Dangle on its head. In Super Mario Advance 3: Yoshi's Island, they also appear in Endless World of Yoshis and can now be defeated with a blue watermelon.

Yoshi's New Island
In Yoshi's New Island, they are found in Beware the Boo Brigade and Fort Key Calamity. Both instances have them appear in a dark room.

Super Mario Bros. 2

 * Instruction Booklet bio: He shines and moves in a circular motion around the walls and floors of the underground. He moves fast or slow.

Super Mario Advance

 * Instruction Booklet bio: You'll find Sparks circling blocks and steps. It's best to use POW blocks to turn off their power.

Donkey Kong series
''' スパーク 種族 　ウエポン族 性格 　一直線 登場 ゲーム　JR、GBドンキー ''' 火花を散らす電気のかたまり JRでは、床を走り回っているので、すきを見て一気に走り抜けよう. GBでは、ロープの上を伝ってやってくるからとにかく避けよう. どちらも触れれば感電死してしまうぞ.

' Wire Trap Tribe: Weapon clan Disposition: Straight line Game appearances: Jr., GB Donkey ' A lump of electricity that emits sparks ''In JR, they are running around on the floor, so you have to run past them at once when you see a chance; in GB, they are moving over the ropes, so avoid them at all costs. In both cases, you will be electrocuted if you touch them.''

Super Mario USA
 スパック  種族 ウエポン族 性格 あきらめが悪い 登場ゲーム USA  アメリカ生まれのスパック  スパックと同じく電気のかたまりで、ブロックの回りを走っている. ジャンプで避けながら進んでいこう. カギやキノコブロックがあれあば、これをぶつけて倒せる.

 Spark  Tribe: Weapon clan Disposition: Reluctant to give up Game appearances: USA  American-born Spark  ''Like Spark, it is a mass of electricity and runs around blocks. Jump to avoid them as you go. If you have a key or Mushroom Block, you can hit it with them to defeat it.''

Super Mario World 2: Yoshi's Island

 * Official Nintendo Player's Guide: Mr. P.D. jealously guards a secret cache of coins in Burt the Bashful's Fort.
 * Shogakukan guide: 暗闇の中で、壁に沿って動いている. 火が消えて白くなったときをねらって、通り抜けよう. (They move along walls in the dark. Try to get by when their flames are extinguished and they turn white.)

Yoshi's New Island

 * Shogakukan guide: 一定の間隔で光を放ち、ゆっくりと移動すろ. 光を照明がわりにして暗い部屋を進もう. 光ったときだけ、触れるとダメージを受ける. 倒すことはできない. (Emits light at regular intervals and moves slowly. Use the light as a light source to advance through the dark room. If you touch it, you will take damage only when it glows. It cannot be defeated.)

Encyclopedia Super Mario Bros.
Bio: 電気を発しながら、足場の周囲を高速で回転している. (It spins around the platforms at high speed while emitting electricity.)

Trivia

 * The name "Spark" is shared with a similar enemy from the Legend of Zelda series.