Ok, basicly my friend is a master hacker, so while I was at his house, I went to him to see if he could find any secrets in this game. He had never played Spyro but he agreed to help me. After a while he started playing around with the level changing codes. Sudenly it said: "Now entering Sunrise Winter" To our suprise surise spring was now in winter!
We took a video of it:
I added a snow effect snow in after, and added music (There was no sound at all when we were on it)
Sadly when we tried to get back to this level, we just couldn't figure out how to do it! I'll let you know if he figures it out, I think he can make a savestate and I'll upload it here