Level select
At the main menu, hold [Shift] and press the following cursor keys: [Down] [Right] [Left] [Right] [Left] [Right] [Left] [Up].

View FMV sequences
At the main menu, hold [Shift] and press the following cursor keys: [Up] [Left] [Right] [Left] [Right] [Left] [Right] [Down].

Path skip
While playing a game, hold [Shift] and press the following cursor keys: [Left] [Right] [Up] [Down] [Left] [Right].