Considering you haven't responded/updated-thread, I'm assuming you were unable to make the code. I've made the code for you.
https://mariokartwii.com/showthread.php?tid=1967
Ran into some issues, but got it done.
Keep in mind, when you trick 2 or more times while in the air during a jump, you don't get another trick animation from the character, just the sparkles, other visual effects, and sound.
Btw, you can pair this with my Hop code I created earlier to hop and trick anywhere.
https://mariokartwii.com/showthread.php?tid=1967
Ran into some issues, but got it done.
Keep in mind, when you trick 2 or more times while in the air during a jump, you don't get another trick animation from the character, just the sparkles, other visual effects, and sound.
Btw, you can pair this with my Hop code I created earlier to hop and trick anywhere.