A kit for retrofitting an amusement machine playing a first game with a second game, said amusement machine including a cabinet, a first playfield, a projection arrangement, a game piece, a first sensor, and a control unit, said first playfield being mounted in said cabinet, said projection arrangement projecting a virtual video image to appear to be superimposed upon said first playfield, said virtual video image including a virtual video target, said game piece being movable relative to said first playfield, said first sensor being mounted to said first playfield and generating a first sensor signal in response to sensing at least one of the presence and absence of said game piece at a location on said first playfield, said control unit including a first memory for storing first image data, said control unit selecting said virtual video image from said first image data partly in response to said first sensor signal, said kit comprising a second memory having second image data stored therein, said control unit selecting said virtual video image from said second image data, instead of said first image data, when said first memory is replaced with said second memory.