Gate

You may be looking for Transformation Gate.

The Gate is an object that appears in the World Tour mode of Sonic & All-Stars Racing Transformed. Gates are only map objects that diversify and separate certain missions and unlockables from each other. Gates are often scattered in each chapter of the the World Tour and require a specific number of stars to open them up, which can be obtained through completing missions before them.

List of gates

Sunshine Coast

Location	Purpose
	To separate the first two Race events from the rest of the Tour for difficulty balance.
	To separate the chapter Sunshine Coast from Frozen Valley.

Frozen Valley

Location	Purpose
	To separate the first few events from special map objects like a slot machine and unlocking Shadow the Hedgehog.
	To separate the chapter Frozen Valley from Scorching Skies.

Scorching Skies

Location	Purpose
	To unlock Console Mods for various characters.
	To unlock NiGHTS.
	To separate the chapter Scorching Skies from Twilight Engine.

Twilight Engine

Location	Purpose
	This gate is used to unlocked the other half of the map, leading to events that unlock Joe Musashi.
	To separate the chapter Twilight Engine from Moonlight Park.

Moonlight Park

Location	Purpose
	Leads to a set of events to unlock Gum.
	To unlock Gilius Thunderhead.
	To separate the chapter Moonlight Park from Superstar Showdown.

Superstar Showdown

Location	Purpose
	Separates the first few missions from the rest for a difficulty effect and for Unlocking Reala and various console mods.
	To unlock AGES and end the World Tour.

Sonic & All-Stars Racing Transformed

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Playable characters	Sonic characters	Sonic \| Tails \| Knuckles \| Amy \| Eggman \| Shadow \| Metal Sonic
	Sega characters	AGES \| AiAi \| Alex Kidd \| Amigo \| B.D. Joe \| Beat \| Gilius Thunderhead \| Gum \| Jacky Bryant \| Joe Musashi \| MeeMee \| NiGHTS \| Pudding \| Reala \| Ryo Hazuki \| Ulala \| Vyse
	Third-party characters	Xbox Live Avatar \| Mii \| Danica Patrick
Tracks	Dragon Cup	Ocean View \| Samba Studios \| Carrier Zone \| Dragon Canyon
	Rogue Cup	Temple Trouble \| Galactic Parade \| Seasonal Shrines \| Rogue's Landing
	Emerald Cup	Dream Valley \| Chilly Castle \| Graffiti City \| Sanctuary Falls
	Arcade Cup	Graveyard Gig \| Adder's Lair \| Burning Depths \| Race of AGES
	Classic Cup	Sunshine Tour \| Shibuya Downtown \| Roulette Road \| Egg Hangar
	Bonus	OutRun Bay
World Tour		Sunshine Coast \| Frozen Valley \| Scorching Skies \| Twilight Engine \| Moonlight Park \| Superstar Showdown
Events		Battle Arena \| Battle Race \| Boost Challenge \| Boost Race \| Capture the Chao \| Drift Challenge \| Pursuit \| Race \| Ring Race \| Sprint \| Traffic Challenge \| Versus
Vehicles		Ava-car 720 \| Amigo's vehicle \| Blazing Banana \| Crazy Taxi \| Danicar \| Eggman's vehicle \| Gum's vehicle \| Land Breaker \| Metal Booster \| Pink Cabriolet \| Shadow's vehicle \| Spacebird 42 \| Speed Star \| Super Zoomer \| Tails' vehicle
Moves/ Techniques	General	Drift \| Start Line Boost \| Stunt
Moves/ Techniques	All-Star Moves	Amy's All-Star Move \| Gum's All-Star Move \| Eggman's All-Star Move \| Knuckles' All-Star Move \| Metal Sonic's All-Star Move \| Pudding's All-Star Move \| Shadow's All-Star Move \| Sonic's All-Star Move \| Tails' All-Star Move \| Ulala's All-Star Move
Gimmicks and obstacles		Boost Pad \| Egg Chaser \| Egg Squid \| Slot machine \| Transformation Gate
Items		Ammo \| Gate \| Item Box (All-Star Item, Blowfish, Boost, Drone, Firework, Glove, Hot Rod, Ice Cannon, Super Glove, Swarm, Twister) \| License \| Mod \| Sticker \| Warp Gate
Music	Songs	"Asteroid Belt: Go! Go! 'Astrobeat Jr.'" \| "We Are Burning Rangers"
Music	Albums	Sega All-Stars Premium Sound Collection \| Sonic & All-Stars Racing Transformed Original Soundtrack
Other		Bonus Chance \| Custom game \| Freeze \| Loop \| Orca \| Pudding's Guitar \| Sonic Universe #45
V·T·E \| {{All-Stars Racing info}} \| Category