Challenge Room

The Challenge Rooms are levels that appear in Sonic Boom: Fire & Ice. They are a series of bonus levels the player can enter through portals in their respective adventure levels. Here, the player must navigate an obstacle course to obtain a Trading Card. Each adventure level in the game has its own Challenge Room.

Overview
The Challenge Rooms and their entrance gates feature five unique designs derived from the adventure levels they appear in: After clearing a Challenge Room, its entrance becomes sealed with an iron gate and a padlock.
 * Kodiak Frontier: Challenge Room entrances in Kodiak Frontier resemble ice totem segments with a walrus face carved on them. These room are set inside an ice cave. The roof is held up by pillars and the roads are made of snow-covered ice. Along the paths are curved ice spikes, mushrooms, and purple thorns. In the background is also a wide opening which shows a winter landscape of evergreen, mountains and cliffs outside.
 * Seaside Island:
 * Paleo Tarpits:
 * Cutthroat Cove:
 * Gothic Gardens:

Gameplay
In terms of gameplay, the Challenge Rooms are like the adventure levels, but harder. Here, obstacles like spiked cubes (both floating and moving ones), spike traps, pits, and unstable platforms appear much more frequently thn in regular levels. There is also great emphasis on platforming. Overall, a Challenge Room is more of an obstacle course and the biggest test of platforming skill in Sonic Boom: Fire & Ice.

In a Challenge Room, the player's only objective is to obtained the Trading Card at the end of it. Once obtained, the player automatically returns to the Challenge Room's entrance in the adventure level. If a character is defeated in a Challenge Room, they will return to its beginning rather than the previous Checkpoint.

Description
A Challenge Room can be accessed by pressing at its gateway hidden inside its adventure level. After clearing it, the gateway will be sealed.