Arrowkeys to move
This method can be used to increase the clone maximum if you make them all like these clone "shells" i'll call them. then each shell within a certain range of the player can be made into an actual clone that can do more stuff. this method is good if you want to keep track of the position of 300 or more clone shells while they are still moving, even off screen. the lag is the only issue. that's most likely why there is a clone cap..
