There aren't any exciting or unusual shortcuts in Banshee Boardwalk. Here is a simple "drive-through" video of the course, as well as more advanced techniques for you to try.
More Advanced Moves
Turbo Start
At the beginning of the race when the lights are counting down, press A just before the light turns blue. You will get a big speed burst that will put you out in front. Be careful not to press A too soon before the lights change, or you will spin out. If you start out in the back of the pack, try this. Then right before you hit another player, press R to jump over them.
Banana Peel Recovery
Make bananas useless to your enemies with this technique. Immediately after you hit a banana, press the B button. A musical note will appear above your character indicating you avoided a spin.
Mario Kart 64 Shortcut Video Walkthrough Series for Nintendo 64
Mario Kart 64 - Banshee Boardwalk Video
