Commands are the best

If you go on a race in VS mode, press 9 after the race begins. Then type /give billball in the commands box. Use the bullet. Right after you use the bullet, press 9 again, type /give etoile. Use it while the bullet is still going. This should show your character in bullet speed, big, and invincible. Its sicc.

More infos here, if anyone is interested. https://mkpc.malahieude.net/topic.php?topic=3975