I went to the Sonic Factory

In today's dream I was playing Sonic Advance 3. I was at Ocean Base and the pairing was Tails and Knuckles. I wwent to the Sonic Factory to replace Tails with Sonic and, when I wanted to go back to Ocean Base, I went to a completely different zone that doesn't exist on Sonic Advance 3, but it involved snow (it wasn't Twinkle Snow).
Here's the Sonic Factory music: