IceCap Zone

IceCap is a fictional location set in the Sonic the Hedgehog universe. It is an Icy mountain located on Angel Island. It is known to be extremely cold and somewhat dangerous. It has appeared in 2 games so far, the first was Sonic the Hedgehog 3, the second is Sonic Adventure.

Sonic the Hedgehog 3
The level first appeared in Sonic the hedgehog 3. After being shot out of a canon from Carnival Night, Sonic and Tails land on the mountain. Sonic rides down it a snowboard and then enters the inside of the mountain. At the end of Act 1, a snow machine that spins snow at Sonic or Tails tries to crush them. Robotnik attacks in Act 2 in a machine that that has a spiked platform drop down and fires the freezing bursts in a pattern at Sonic.

Sonic Adventure
In Sonic Adventure, Angel Island once agains falls to the earth. Sonic and Tails get onto the island and climbs up an icy passage to the IceCap. After fighting Eggman's badniks on the mountain, Sonic and Tails enter inside the mountain to where they must climb up to the top to escape. To do this they must ice spikes coming out of ceilings of the "floors" of the mountain. Once out of the mountain, an avalanche occurs, forcing Sonic and Tails to snowboard down the mountain to escape. Once on the otherside of the mountain, Sonic and Tails find the Chaos Emerald they were seeking. Big also comes across the mountain after his friend, "Froggy" runs inside of it. Big also enters the mountain and fishes for Froggy in the a pool inside.