Introduce
Player1: A D W, X
control
migration, Q the E key
control artillery tube direction,
the S key
fires at player2: J L I M key
control migration, U the O key control artillery tube
direction, the K key fires at plyaer3: The direction key
control direction, Delete the PgDn key control artillery
tube direction, the End key fires at player4: Small keyboard
4,682 controls migration, 78 controls artillery tube direction, 5
fires