Jackie Chan's Action Kung-Fu Game System: NEC Turbo Grafx 16 Cheat Category: Cheat Game Company: Unknown Game Category: Unknown Hint, Cheat, Walkthrough:   Jackie Chan's Action Kung-Fu ============================ Level select: Press Up, Down, Left, Right, II at the title screen. A chirping sound will confirm correct code entry. Hold Select + Run to display the level selection screen. Use Up or Down to select a level, then press Run to begin game play.