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Diamond Dust Zone, the fourth zone in Sonic 3D: Flickies' Island, seems to be heavily influenced by Icecap Zone from Sonic 3, and features some great music. The level takes place in a winter environment, with slippery ice and snowy gusts everywhere. The boss of this level also seems to be heavily influenced by Sonic 3's Icecap Zone, with Robotnik trying to do nothing but freeze you.
The environment plays a big part in the level. Some areas are covered with ice that is very difficult to get around on. Blasters blast frost that will freeze Sonic instead of directly attacking him. When Sonic defeats the Robots, he will find that some of the Flickies inside them are frozen. He will have to open the block of ice before he can free the Flicky.