Frostbite Sonic - Oops looks like someone left nightmare sonic in the freezer too long, An icy nightmare sonic, which was going to be used for nightmare sonic's winter skin for all stars although he was created way before that, originally being called nightburr sonic

Frostbite Tails- Dang how cold did the SHPP 1 location get after it was abandoned? An icy nightmare tails, with a pointy icicle replacing his hook

Frostbite Yoshi- Someone left the freezer door open. An icy Nightmare Yoshi with a bloody sharp icicle replacing her knife.

Abominable Mario- A mario clone that appears to have mutated and adapted to the colder environment. The most dangerous of the winter nightmares and is the tallest of the 4.