One of our core mechanisms is to have players leave a trail behind them as "dream eaters" and when they come into contact with the trail, they will die. As part of surviving in the game, the players need to shoot other player's trails in order to reduce the length of the trail and make moving around more manageable. 

At the current stage, we were able to make another character that follows the player and leaves a trail behind it. When the player shoots the trail, the length will decrease.