I really like how much detail you put into this level. =D
Although, tunes 44 is kinda unessecary, I don't think you can find it in game. If you want to know, check the spoiler.
[spoiler:530e195309]HA HA. Fat Chance you'll find out by me. Do it yourself.[/spoiler:530e195309]
Although, when I played GFZ1 with this mod added, I nearly went blind. <>_<>
It doesn't matter though, those little gimmicks and details just give it an edge. I've found no problems what so ever. Even that Sonic Advenace thing in the throne room is awesome. You should make more levels for this.