Storm Cloud

A burst of bad weather that zaps any runners passing through it, removing an item.

— Description, Sonic Forces: Speed Battle

The Storm Cloud is an Item Box power-up that appears in the Sonic the Hedgehog series. It is a Trap Item used primarily to obstruct opposing rivals' path.

Description

The Storm Cloud's icon takes the form of a blackish thundercloud that emits a light blue lightning bolt. In gameplay, this power-up becomes a row of floating gray thunderclouds that constantly emit purple lightning.

Overview

In gameplay, the Storm Cloud can only be obtained at random from Item Boxes by Baby Sonic, DJ Vector, Idol Shadow, Rockstar Rouge, Shadow (also as Super Shadow), Sir Lancelot, Vampire Shadow, Tropical Storm, and the Werehog. As with most other Items, Metal Sonic and Metal Sonic Mach 3.0 can also use the Storm Cloud if they use the Steal Item, or Fortune Teller Amy if she uses Lucky Draw or Wall of Cards to steal it from the aforementioned user.

Once obtained, the player can utilize the Storm Cloud by pressing its icon on the bottom of the HUD. When used, the user drops this power-up's thunderclouds some distance ahead of the user's current location on all the lanes that the user is not currently on. If a character, including the user themselves, touches one of these thunderclouds or their lightning bolts, they will be stunned, thus causing them to lose Rings and stop moving for a moment, and lose one random power-up in their inventory slots on the HUD. To avoid the Storm Cloud, the playable character must either slide underneath its storm clouds or run in-between them.

The Storm Cloud can also be upgraded by leveling the user up to level 4, 10 and 16 respectively. For each upgrade, the zap effect of the Storm Cloud will be extended. Baby Sonic's case has unchanged the upgrade outcome for his Storm Cloud upgrade is level 2, 8 and 14, however.

Playable characters	Common	Amy · Charmy · Knuckles · Omega · Sonic · Tails · Classic Sonic · Silver
	Rare	Espio · Rouge · Vector · Blaze · Cream · Jet · Wave · Storm · Tangle · Whisper
	Super Rare	Shadow · Chaos · Metal Sonic · Zavok · Big · Zazz · Zeena · Tikal · Dr. Eggman · Gamma
	Special	Witch Rouge · Vampire Shadow · Elf Classic Sonic · Santa Big · Lunar Blaze · Lantern Silver · Spring Cream · All-Star Amy · Slugger Sonic · Tropical Storm · Tidal Wave · Ice Slicer Jet · Reaper Metal Sonic · Movie Sonic · Baby Sonic · Longclaw · Treasure Hunter Knuckles · Elite Agent Rouge · Excalibur Sonic · Jingle Belle Amy · Quarterback Zavok · Sir Lancelot · DJ Vector · Punk Zazz · Super Sonic · Sir Percival · Unicorn Cream · Werehog · Nutcracker Silver · Lucky Whisper · Linebacker Omega · Movie Tails · Sir Gawain · Movie Super Sonic · Paladin Amy · Darkspine Sonic · Super Shadow · Nine · Boscage Maze Sonic · Popstar Amy · Rockstar Rouge · Dragon Hunter Lancelot · Knuckles the Dread · Super Silver · Thorn Rose · LEGO® Sonic · LEGO® Amy · LEGO® Tails · Panda Amy · Sir Galahad · Classic Super Sonic · Mummy Knuckles · Chrono Silver · Snowdrift Sonic · Dragonfire Sonic · Dragonclaw Tails · Valentine Rouge · Chuck · Jester Sonic · Drummer Cream · Valiant Tails · Idol Shadow · Karate Knuckles · Fortune Teller Amy · Extreme Gear Sonic · Detective Vector · Pyromancer Blaze · Dulce Amy · Blossom Amy · Bassist Blaze · Ninja Espio · Unicorn Knight Cream · Sinbad the Sailor
	Challenger	Infinite · Movie Knuckles · Mephiles · Rusty Rose · LEGO® Dr. Eggman · Warlock Infinite · Surge · Grim Sonic · Red · Series Knuckles · Metal Sonic 3.0 · Burning Blaze · Valhalla Surge · Oni Mephiles · Warrior Shadow · Movie Shadow · Movie Super Shadow
Non-playable characters		Boo · Chao · Cheese · Froggy · Phantom Copy · Shadow (enemy) · Wisp (Black, Blue, Crimson, Cyan, Gray, Ivory, Magenta, Pink, Red, White, Yellow)
Tracks	Green Hill	Pyramid Valley · Corkscrew Canyon · Parched Palms
	Sky Sanctuary	Temple Gate · Celestial Skyway · Pinnacle Peaks · Ancient Isles · Spiral Heights
	City	Sunset Bridge · Splash Highway · Viaduct Valley · Red Gate Bay
	Mystic Jungle	Lambent Grove · Electric Arbor · Dash Vegas · Glowing Grotto
	Golden Bay	Street Retreat · Suburban Speedway · High Hill Park
	Planet Wisp	Mining Mayhem · Mining Mayhem R
	Emerald City	Downtown Dash · Emerald Market Blitz · Big City Sprint
	Metro City	Main Street · Scramble Avenue · Central Park
	Removed	Sandy Hills · Desert Falls · Parched Palms R · Pyramid Valley R · Celestial Skyway R · Temple Gate R · Red Gate Ruins · Red Gate Bay R · Splash Highway R · Tangled Tunnels
Enemies		Buzz Bomber · Drone · Egg Chaser · Egg Pawn
Moves/techniques		Chaos Spear · Grinding · Grind Step · Hover · Slide · Spin Attack · Spin Jump · Super Sonic Boost
Gimmicks and obstacles		Conveyor Belt · Corkscrew · Dash Panel · Grind Rail · Loop · Spikes
Items	General	Chest · Emerald · Phantom Ruby prototype · Red Star Ring · Ring · Trophy
Items	Item Box power-ups	Audio Assault · Balkiry · Bam-Boost · Bashosen · Bass Boost · Bass Rush · Bat Bomb · Beat Boost · Berserker's Axes · Blazing Aura · Blizzard Bomb · Blossom Glide · Blue Tornado · Boo-Boost · Booby Trap · Broadside · Brutal Barrier · Brutal Blitz · Bubble Bomb · Bullet Punch · Bunny Boost · Captive Light · Chao Attack · Chao Chase · Chao Guardians · Chao-nado · Chaos Blast · Chaos Boost · Chaos Charge · Chaos Chord · Chaos Control · Chaos Flame Sword · Chaos Slash · Chaos Spear · Choc Lock · Chopper Boost · Chopper Chomp · Claw Boost · Confusion Boost · Confusion Mine · Crossed Wires · Cyan Laser · Cyborg Smash · Cyclone Charge · Dancing Blade · Dark Blast · Dark Embrace · Dead End · Deadly Replica · Deadly Spears · Drac-O'-Lantern · Dragon Breath · Dragon Dance · Dragon Flight · Dragon Smoke · Drill Spin Boost · Drumbeat · Dual Wield Dash · Earthshaker Fist · Electro Boost · Ember Shroud · EMP Boost · EMP Shield · Energy Cannon · Explosive Mine · Falling Flames · Falling Sword · Fearless Strike · Feral Dash · Festive Forest · Festive Umbrella Boost · Fire Boost · Fire Whirl · Fireball · Firecracker · Firework Flurry · Flames of Disaster · Flue Shot · Fortune Boost · Frozen Chopper Chomp · Gail Meteor · Gathered Flame · Gift Trapped · Gift Wrapped · Glimmering Guard · Gold Rush · Golden Boost · Green Hover · Grimions · Hammer Slam · Hard Rock · Harvest Time · Hedge Maze · Home Run · Honor Guard · Ice Boost · Ice Mine · Ice Wave · Invincibility · Jingle Boost · Jump Scare · Jungle Run · Kanabo Boost · King's Judgement · Knight Smite · Konohagakure · Kunai Grapple · Laevatein Lunge · Laser Blaster · Lava Bomb · Lightning · Lightning Bolt · Lightning Boost · Lightning Storm · Lilytrap · Lockup · Love Struck · Lucky Draw · Magical Boost · Metal March · Meteor Charge · Meteor Crash · Missile Launch · Moto-Bug · Panda Mine-ium · Phantom Dagger · Phantom Dash · Pink Spikes · Pit Stop · Power Sneakers · Power Surge · Psy-Chlone · Psychic Strike · Psychic Surge · Psychic Surprise · Pyro-Mine · Rainbow Blast · Reality Warp · Red Dragon · Ring Portal · Rip Tide · Rocket Boost · Rockstar Chao Attack · Rocky Road · Savage Throw · Seeking Flame · Sharp Shelter · Shed Light · Shield · Shockwave · Slingshot Boost · Slipstream Whirlwind · Slow Burn · Snowball · Sol Transformation · Solo Hit · Sonic-in-the-box · Soul Surge · Spear Trap · Speed Break · Stalking Onibi · Stalking Shade · Star Trail · Steal · Storm Cloud · Strike Out · Sugar Rush · Super Form · Swarming Darkness · Sweet Roll · Sword Launch · Tail Spring · Tail Strike · Thunder Shield Wall · Tornado · Trap Shot · Tricky Towers · Twin-Tail Boost · Ultimate Waveform · Umbrella Boost · Viking Offense · Vision Scramble · Volt Bolt · Wall of Cards · Water Wheel · Whirlwind Wallop · Whirlwind · Wild Card · Wind Boost · Wipeout · Wrench Rush · Zap Trap
Other		Air Shoes · Air Shoes (Paramount) · Angry Birds · Arondight · Chaos Emeralds · Ddraig Goch · Eggmobile · EMP-Charged Boots · Excalibur · Experience Point · Extreme Gear (Blue Star II, Type-J, Type-S, Type-W) · Flamberge · Galatine · Holo-Tech Sword · Jet Booster · Laevatein · Outfit · Phantom Ruby · Psycokinetic Enhancers · Ring (Paramount) · Sol Emeralds · Sonic's shoes · Variable Wispon · World Rings (Aqua Ring)