Type "TIME0" (that's a zero at the end) on the title screen. Then
press fire to begin the non-existent game. Also works during play. 
09:09:10
16-BIT. 100 % HERZ // KICKSTART 3.1 // WORKBENCH LOADED
Type "TIME0" (that's a zero at the end) on the title screen. Then
press fire to begin the non-existent game. Also works during play.