Machine Labyrinth is the second stage of Sonic Rush Adventure. As with other stages in the game, Machine Labyrinth consists of two standard Acts followed by a dedicated boss Act. Bronze Material can be found here.
With Plant Kingdom thoroughly explored and the Ghost Rex defeated, Marine sets her eyes on new horizons to conquer - specifically, those to the south-east, where Tabby of the Coconut Crew reports a mechanical island is visible. Setting sail again on the Wave Cyclone, Sonic, Tails, and Marine make their way to this metallic anachronism of an atoll. The curious raccoon immediately wanders off the moment they land, requiring Sonic to race through the level looking for her.
A mechanical island in the tropical seas of the Sol Dimension, this vast steampunk machinescape is a divergence from the traditional industrial trope, in that rather than a grimy and oppressive Eggman Empire purgatory, the stage is quite a jaunty affair. Sonic sprints and bounces his way along winding iron roadways, zooming down vac-tubes and bouncing on steam plumes. The enemies are steam-powered too, and there's even a steam-powered hang glider for flying in!
The origin of the obviously artificial Machine Labyrinth is never explained in the game, though the most likely candidate for its construction seems to be Eggman Nega, as the only known roboticist active in Blaze's world for any length of time.
- Hang Glider - Pressing will send it upward at a pre-determined height, then it will slowly descend. The speed that the player hits the Hang Glider will determine the speed at which it travels, so if you want to be careful, walk into it if they want to be careful, or use the Boost to blast their way through. However, pressing the button or running into something will make it crash. This is a gimmick that takes getting used to, but neon blue arrows in the background will sometimes indicate when danger is near the player's altitude.
- Steam - In most Sonic games, steam is harmful, but here it's a Trick Object that pushes the player high in the air. Steam jets are sometimes capped by a plug, which can be broken to blast the player up in the air.
- Steam Pinwheel - The player automatically goes around in a circle, and should jump off it when they are facing the direction they want to go, though it helps to hold the D-Pad in the desired direction. Similar to the pinwheels of Sky Canyon in Sonic Advance 2.
- 3D Drums - These drums send the player bouncing into the foreground or background, allowing them to get around what were seemingly solid walls. A series of drums will bounce them around and eventually deposit them back in the level proper.
- Vac-Tubes - These quickly transport the player to different parts of the level, usually in or out of the "factory" (indicated by a change in the background).
||Shisaku-gata Spanner — These robots have long arms with wrenches. If the player gets too close, they will swirl their wrenches around, giving them a wide attack radius.
||Shisaku-gata Jet — Robots that move up and down in the air with a rocket pack. Trick Actions or Boosting will deal with them.
||Shisaku-gata Dump — Robots that spray a harmless jet of steam at the player, pushing them backwards.