Create a confetti effect when player wins?

use particle object + color change

or gravity physics + sprite create in loop 10/20 on trigger apply impulse at angle random 200/320 using physics

confeti example

see this quick example, there is 2 ways of doing it ... the one with loop i triggered it with mouse click, but u can trigger it instead of mouse click when game ends ... notice is on 1 time trigger (or one time per click / action)

the other is already in screen is a burst spray but needs a lot of customizations in parameters. play with them see if u can get ur desired effect.