The Ice Mines take the form of iron balls made entirely of light blue ice.
In gameplay, the Ice Mine can only be obtained at random from Item Boxes by Amy, Chaos, and Sonic. As with all other Items, Metal Sonic can also use the Ice Mine if he uses the Steal Item to steal it from the aforementioned users.
When used, three ice blocks will be dropped some distance ahead of the user's current location on the lanes that the user is not currently on. Touching an Ice Mine with a playable character (including the user) will cause them to freeze instantly, slowing them down. This effect will last for a short amount of time or until the player gets hit by an obstacle or falls into a bottomless pit. The Ice Mines can be upgraded for each individual user by leveling them to levels 4, 10 and 16, increasing the duration a hit character stays frozen.
To avoid Ice Mines, the player must either jump over them or run in between them.