Super Mario Kart Prototype - Choco Island 3 

A few years ago, someone discovered the prototype for Super Mario Kart. During this discovery, it was revealed that there was going to be a third Choco Island course and plus Mario Circuit 4 was going to be the final course of the game. However, i guess Nintendo didn't see the appeal for Choco Island 3 and it was scrapped. What level replaced it you may ask? A little-known level called RAINBOW ROAD. I decided to play this scrapped level for you guys, keep in mind, the controls suck in this prototype lol