If you look at one of the textures, you'll find Petey Piranha, who is visible in-game. (Apparently, Yoshi starred in a play. You can learn a lot of things when you rip a game)
This one was a nightmare to rip, mostly because of the repetitive naming scheme. (Seriously, why does almost all the textures begin with "senior_course" and end with a number? And why is Daisy Circuit called "senior_course"?)
Toadette has found a Super crown inside a ? block in the style of SMW8/SM8W! Stay tuned for SMM peachette! Credit needed and enjoy! Credit to Awesomezack for the snow tiles , the ? block and Toad. This SMM sheet include these styles: