http://www.netrover.com/~timt/cheats/e/ecophantom.html (Amiga Plus Extra No. 5/97, 05/1997)During play, press and hold 'J', 'E', and 'Z' to replenish the life meter, weapons meter, and to activate the keys '1'-'7'. Press '5' to refill life meter and press '7' to refill weapon meter. All the keys haven't been tested.