Gaia Gate

Apotos Gaia Gate
Hub level, Sonic Unleashed

Gaia Gates serve as the explorable hub areas in the PS2 and Wii versions of Sonic Unleashed. Talking to certain townsfolk in each village will earn the player a tablet, granting him or her access to that continent's Gaia Gate. From there, the player can then enter a stage or find items hidden in each room of the Gaia Gate.

Every Gaia Gate has its own theme corresponding to the continent it represents. The gates are all connected and the player can select another gate by stepping on one of the glowing pads in the room to the left of each gate. Apotos is the only Gaia Gate that doesn't cause Sonic to transform into the Werehog in the lobby area, while Eggmanland is the only continent that lacks a Gaia Gate entirely.

Gameplay

Sun Tablets unlock Day Stages (Sun Doors), Moon Tablets unlock Night Stages (Moon Doors), and Planet Tablets unlock Boss Stages (Planet Doors).

Sun Tablet	Moon Tablet	Planet Tablet

Each continent has a number assigned to it. Apotos and Mazuri are the only zones to share the same continent (First Continent), as they are part of the same planet shard. Apotos is also the only zone that lacks a Planet Door, while Mazuri is the only that lacks both a Sun Door and a Moon Door.

To find hidden Items such as extra lives (1-ups) and bonus missions (Secret Missions), the player must have enough Sun and Moon Medals to open a Item Door in the Gaia Gate. Upon collecting all of the items in a room behind one of the doors, a small notification will appear onscreen.

Item Doors

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Apotos - First Continent

Room 1 - Door to the left
(requires 33 Sun Medals and 23 Moon Medals)

	2 1-ups
	Secret Soundtrack 12

Room 2 - First door to the right
(requires 43 Sun Medals and 45 Moon Medals)

	1-up
	Secret Mission 14
	Secret Illustration 96

Room 3 - Second door to the right
(requires 14 Sun Medals and 14 Moon Medals)

	Secret Soundtrack 31
	Secret Soundtrack 47
	Secret Soundtrack 4

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Mazuri - First Continent

Room 1 - Door to the left
(requires 14 Sun Medals and 15 Moon Medals)

	Secret Illustration 63
	1-up

Room 2 - First door to the right
(requires 55 Sun Medals and 46 Moon Medals)

	Secret Mission 15
	Secret Mission 8
	Secret Mission 16

Room 3 - Second door to the right
(requires 87 Sun Medals and 69 Moon Medals)

	Secret Illustration 95
	Secret Soundtrack 2
	Secret Soundtrack 29

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Spagonia - Second Continent

Room 1 - First door to the left
(requires 93 Sun Medals and 69 Moon Medals)

	Secret Soundtrack 27
	Secret Movie 22
	Secret Movie 26

Room 2 - Second door to the left
(requires 75 Sun Medals and 52 Moon Medals)

	Secret Mission 12
	Secret Illustration 62
	Secret Mission 4

Room 3 - First door to the right
(requires 95 Sun Medals and 69 Moon Medals)

	Secret Movie 34
	Secret Movie 30
	Secret Movie 24
	Secret Soundtrack 25

Room 4 - Second door to the right
(requires 23 Sun Medals and 15 Moon Medals)

	Secret Mission 1
	Secret Soundtrack 6
	Secret Mission 3
	1-up

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Chun-nan - Third Continent

Room 1 - First door to the left
(requires 89 Sun Medals and 69 Moon Medals)

	Secret Movie 29
	Secret Movie 28
	Secret Soundtrack 28

Room 2 - Second door to the left
(requires 86 Sun Medals and 60 Moon Medals)

	Secret Mission 19
	1-up
	Secret Soundtrack 07

Room 3 - First door to the right
(requires 33 Sun Medals and 34 Moon Medals)

	Secret Soundtrack 26
	Secret Soundtrack 18
	Secret Soundtrack 20
	1-up

Room 4 - Second door to the right
(requires 33 Sun Medals and 21 Moon Medals)

	1-up
	Secret Soundtrack 48
	Secret Soundtrack 11

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Holoska - Fourth Continent

Room 1 - Door to the left
(requires 90 Sun Medals and 69 Moon Medals)

	Secret Movie 23
	Secret Movie 25
	Secret Soundtrack 24
	Secret Mission 17

Room 2 - First door to the right
(requires 23 Sun Medals and 21 Moon Medals)

	Secret Soundtrack 5
	2 1-Ups
	Secret Soundtrack 14

Room 3 - Second door to the right
(requires 60 Sun Medals and 46 Moon Medals)

	2 1-Ups
	Secret Soundtrack 15
	Secret Soundtrack 17

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Shamar - Fifth Continent

Room 1 - First door to the left
(requires 43 Sun Medals and 52 Moon Medals)

	Secret Mission 5
	Secret Mission 7
	Secret Mission 9
	Secret Mission 18

Room 2 - Second door to the left
(requires 96 Sun Medals and 69 Moon Medals)

	Secret Movie 27
	Secret Movie 32
	Secret Soundtrack 30

Room 3 - First door to the right
(requires 68 Sun Medals and 56 Moon Medals)

	Secret Mission 22
	Secret Movie 19
	Secret Illustration 3
	Secret Illustration 40

Room 4 - Second door to the right
(requires 70 Sun Medals and 59 Moon Medals)

	Secret Soundtrack 21
	Secret Mission 23
	Secret Illustration 89
	Secret Mission 11

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Adabat - Sixth Continent

Room 1 - First door to the left
(requires 99 Sun Medals and 69 Moon Medals)

	Secret Soundtrack 3
	Secret Soundtrack 16
	Secret Movie 31
	Secret Mission 28
	Secret Document 33

Room 2 - Second door to the left
(requires 80 Sun Medals and 60 Moon Medals)

	Secret Mission 20
	Secret Mission 24
	Secret Illustration 92
	Secret Mission 21

Room 3 - First door to the right
(requires 97 Sun Medals and 69 Moon Medals)

	Secret Soundtrack 46
	Secret Soundtrack 23
	Secret Movie 33
	Secret Movie 35

Room 4 - Second door to the right
(requires 80 Sun Medals and 69 Moon Medals)

	Secret Mission 27
	Secret Mission 26
	Secret Illustration 61

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