Double click the flag or the music will be off time. You know what to do, replace characters and change bgs, or if you want you can replace one character and make it a remix chain. This has two events btw. Also there are two sets of arrows (one for 2D and one for 3D) so if you want to customize the arrows you'll have to do both sets.
https://scratch.mit.edu/projects/676973017 for the og IDK who made the Bambi rig.