I have thought of another way to be able to play in the tag sytem system, for example, it would be that after 25 or 40 seconds of fighting, the secondary character would also come out and fight for himself with you (for about 30 seconds), and then leave. It would be a temporary support, and with the enemy the same thing would happen. So we would save ourselves having to be pressing keys to take out the secondary one. You could also put another option that would come out 2 times but for less time, or once but more time. A lot of variety to fight.
 if someone could create this method it would be very cool