To get him u need to go to options and set the mode to invisible mode. use kirby to beat classic mode, when u get to the stage with the fountain go to the top of the fountain and use ur brick stomp to commit suicide do not continue . in ur character list ull find an invisible char. in jigglypuffs spot the game does not say its casper but once u play it ull know. it knows rergular punches and it can fly always turn invisible and it can suprise attack.