If anyone wants the kitty fireworks, here they are for black background. Put them in the texture file, save your original textures either in an alternate name or folder, and take out the "kitty".
For white background, open the file in paint and hit Ctrl+I to invert it
By the way, I also made solid kitty tunnel rings, but they sometimes slow down, and get choppy in really intense (400+ traffic) songs, not to mention making everything completely blind.