Snaking will help you win races by a long shot. To snake is basically powerslide. Mastering snaking can be tricky. To powerslide, press R button while turning either way and shifting the D-Pad left and right at a medium speed until your sparks on your Kart turn red. It usually takes only four left/right/left/right/ motions to get a powerslide, depending on your speed. Once you master the speed of how you powerslide, you can start to snake.This will mostly help you get three star ranking on your Grand Prix races. You can also use this method online, which many users do. (Including myself) To snake, powerslide a certain direction. After that, either hop or turn sharply the other way and do another powerslide. Do this for most of the race, and depending on the track, you can win it easily rather than those that do not snake. Hope this helps anyone! I've taught this to many friends and now they are really good at Mario Kart DS, and it's fun to snake!