Tangled Tunnels is a hard-difficulty track based in Mystic Jungle. It contains massive six-lane half-pipes and Grind Rails.
In Tangled Tunnels, the playable characters are stuck running down the level's road and can only move left and right between the road's lanes (akin to the Quick Step). While running, the player can pick up powerups from Item Boxes and utilize the gimmicks native to this track.
Tangled Tunnels has many environmental obstacles which the player can either jump over, roll under or move around. Running into one of these obstacles will result in the player taking damage and lose some of their Rings. Falling into bottomless pits on the other hand forces the player to restart from an earlier point on the track.
The racers begin on a set of Grind Rails, which quickly transition to the ground as the players reach a set of Item Boxes. From there, they will continue onward through alternating sets of Grind Rails, terrain, and four-lane sections containing Triple Dash Pads.
Unlike the other Mystic Jungle tracks, Tangled Tunnels takes place across several particularly large corkscrews, which are separated by portions of track with obstacles and the aforementioned Triple Dash Pads.
Along with the other Mystic Jungle tracks, Tangled Tunnels is one of the stages with a different song that plays during a race.