Automatically Win or Lose
During any Mahjong match, press any of the following button combinations:
Effect Code Lose The Match Button 2 + Run Win The Match Button 1 + Run
See The Opponent's Titles
At the technique selection screen right before a match starts, press I or II to start the match and immediately hold Right + I + II + Select. If done right, you'll be able to see the opponent's titles.
At the PC Engine CD boot screen, hold Up + Left + Button 1and press Start. When the title screen appears, you should be able to select stages.
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