Edited things out for my specific needs, but this saved me a bunch of time. Thank you!
Viewing post in Confetti Pop - GameMaker Asset comments
Would you want me to send you my edited version?
I basically cleaned up the code quite a bit, and made it all into a single object now. I Capped the particle refresh rate a 60 fps (since my game is not capped) and made it so that the confettis look like they are rotating around the Y axis. My game is higher resolution than the exemple, so I made the confettit slighly bigger.