Sonic Frost
Sonic Frost is one of my old sonic fangames from 2016-2018.
It is supposed to take place after Sonic 2 and before Sonic 3. The story is that after the events of Sonic 2's good ending, Sonic and Tails decide to relax but it turns out they get a letter from Dr. Robotnik inviting them to Northern Island, and when they arrive, they see the place has been turned into a Winter wonderland! It's up to Sonic and Tails to take down Eggman and restore the Island to it's original state.

Stages:

Download: