|Level, Sonic Adventure|
|Number of Acts: 2|
|Level theme: mountain/canyon|
|Secondary level theme: lava/volcano|
|Tertiary level theme: underground/cave|
Red Mountain is an action stage in Sonic Adventure that takes place in Angel Island's mountains, presumably not far from Ice Cap. Split into two parts, the level consists of a dash through the mountains, followed by a lava-filled inferno of a volcano. The stage is accessible by Sonic the Hedgehog, who chases the Egg Carrier, Knuckles the Echidna, searching for three more Master Emerald shards, and E-102 Gamma, tracking down E-104 Epsilon.
Accessible by Sonic and Knuckles, this part takes place in the heart of Angel Island's mountain range. Watch out for a spring at the start of the level, after the first rocket boost, and a trail of rings which Sonic can Light Dash across to another rocket and two extra lives. These short-cuts come in useful when playing for the A-Rank. Sonic's level ends after a zipline to a trapdoor near the base of a mountain.
Gameplay as Knuckles is straightforward, though the size of the stage, and the vast number of platforms and levels, make searching for the emerald shards a frustrating experience. Watch the Emerald radar closely, and look out for the hint orbs littered around the stage.
This area is accessible by Sonic and E-102 and is set deep within an active volcano. The gameplay on Sonic's version is again, simple. Starting off at the end of a simple passage, Sonic must navigate past crumbling rocks and rising lava to a rocket at the end of the stage. Speed is essential in most parts, and slowing down for any reason is not recommended. At one point a trail of rings is visible, allowing a shortcut as Sonic, however when charging up the Light Dash, the orbs of light swirling around him will trigger a nearby pathway to crumble and collapse, leaving this the only path for escape. The level ends after a series of flaming skulls, giant hammers and spiders, when Sonic is shot up into the air and onto the Egg Capsule.
E-102's gameplay is a little more complex. Being heavier than Sonic, Gamma cannot be bounced as high from springboards, and cannot run up curved pathways. Therefore, the player must navigate a series of crumbling platforms directly above the lava. The Jet Booster comes in useful as a substitute to Sonic's jump dash. The level ends after the destruction of E-104.
|Sonic the Hedgehog|
|Level number: 7|
|Maximum rings: 534 + (6-240)|
|A-rank requirement: 3m 0s|
|Knuckles the Echidna|
|Level number: 3|
|Maximum rings: 277 + (3-120)|
|A-rank requirement: 1m 0s|
|Level number: 4|
|Maximum rings: 163 + (1-40)|
|A-rank requirement: 180 seconds|