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This location exists primarily or exclusively within the Sonic Boom continuity.
Information in this article may not be canonical to the storyline of the games or any other Sonic continuity.

The Fissure Tunnels[1] are levels that appear in the Sonic Boom series. They are a series of bonus levels that the player can enter from the six first World Maps in the game. Here, Sonic the Hedgehog races through an elemental tunnel overflowing with fire and ice elements to the wellspring of a giant fissure.

Description[]

FissureTunnelOpening

A Fissure Tunnel's entrance on the World Map, from Sonic Boom: Fire & Ice.

Fissure Tunnels are underground tunnels with stalactites and fissures at the end which switch between two environments: one is red-hot with magma floors and thin magma falls, while the other is ice-blue with ice crystal clusters. Along these tunnels are sections of paths made of hardened magma or ice. These paths are aligned next to each other so they outline a tube or half-pipe. At various points, there are mechanical gates that open as Sonic approaches. On the World Maps, the Fissure Tunnels look like giant crates with fire and ice around them.

Gameplay[]

FissureTunnelMap

The map of a Fissure Tunnel showcasing Sonic's position, from Sonic Boom: Fire & Ice.

In a Fissure Tunnel, the player plays in 3D, unlike the 2.5D adventure levels. Here, Sonic is stuck at full run and can only move left and right (akin to the Quick Step). While running, Sonic's position and progress towards the goal in the tunnel is shown on the bottom screen of the Nintendo 3DS. The Fissure Tunnels' gimmicks include Bounce Pads and Ener-Rails which are used to cross chasms or reach otherwise inaccessible rails. There are also Boost Pads and Dragon Rings, the latter of which will reward Rings if completed. The player can also press and hold down Snnwiidsybuttondisco to boost Sonic's speed when available.

Along the path, the environment around the player changes frequently between fiery and icy. Within these sections are obstacles that require Fire/Ice Mode, both of which the game will tell when to use. Icicles may appear in ice caves, which must be melted by switching to Fire Mode. The fire caves, on the other hand, have water bridges that must be frozen using Ice Mode so that Sonic can run safely across them. Other obstacles also include green and red energy circuits and elemental pillars. Touch or fail to counter any of these obstacles, and the player is forced to restart the Fissure Tunnel from the beginning. When riding Ener-Rails, the main obstacles become red lasers or fire geysers.

Overview[]

FissureTunnelIce

Sonic in the ice section of a Fissure Tunnel, from Sonic Boom: Fire & Ice.

Fissure Tunnels can be found on every World Map in Sonic Boom: Fire & Ice, except Thunder Island. An area's Fissure Tunnel becomes available after clearing a certain amount of levels in said area. The general goal of all Fissure Tunnels is the same: Sonic races down a pre-set path and it is the player's objective to guide him safely to the end of the tunnel. During the course, the player must shift lanes to dodge obstacles and use gimmicks or Fire/Ice Mode to move between sections at the right time. The player can also collect Rings to obtain extra Ragnium.

The Fissure Tunnels get progressively harder as the player advances through the game, with obstacles appearing more frequently and the time to react decreasing. Upon clearing a Fissure Tunnel, Sonic finds the local fissure and seals it by leaping towards a large stone stalactite and dropping it into the fissure's mouth in order to close it, marking the end of the level.

Reward system
Requirement Reward
Frozen Pipeline Fiery Duct Hazardous Conduit Tunnel of Treachery Mysterious Tube Perilous Chute
Reach goal with 200 Rings Ragnium
Reach goal in 01:25 min Reach goal in 01:35 min Reach goal in 01:40 min Reach goal in 01:45 min Reach goal in 01:55 min Reach goal in 01:55 min Ragnium

Gallery[]

Level maps[]

Gallery

Trivia[]

See also[]

References[]

  1. Koopman, Daan (6 September 2016). Sonic Boom: Fire & Ice (3DS) Hands-on Preview. Nintendo World Report. Retrieved on 16 September 2016.

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