The checkpoint works locally so each player will see the checkpoints he has reached before green, it also saves the last checkpoint you touched as your respawn location, the sound and particles are played every time the player steps on it but the color stays, so you can see that you’ve already been in that checkpoint but also see the particles and sound when you step on it. The sound, particles, color, arrow and almost everything is customizable. It also comes with the option to make each feature stay forever after activated or restart (sound, particles, color, arrow.. etc)