Ice Mountain Zone is the fourth zone in Sonic Advance. This zone is basically a replica of Sonic 3's IceCap Zone, complete with that zone's snowing effect, albeit with different graphics. It does, however, have a much larger underwater area. It should be noted that, unlike the Sega Mega Drive Sonic games, air underwater only lasts for 18 seconds, and there are no chimes to indicate time spent underwater—only a counter for the last five seconds of air.
This is also the only zone in the game to have a Special Spring in both of its acts. Other zones in the game typically only have a Special Spring in one of their acts.
- Yukimaru - Pandalike robot which uses snowballs to attack
- Pen - Penguin badnik with a which also attacks using snowballs
- Kuraa - Jellyfish robot utilizing electric shocks. Only found underwater.
- Drisame - Sharklike badnik that appears under walls, a la Grounder.