未知密技:

There is some old cheat left in final version. When title appears from bottom of screen and before it stop scrolling you must be pressed Up, Right, Down, Left, Down, Right, Up, Left, A, B sequence and then press A to increase some internal counter up to 99. There is not so much time to enter cheat and increase counter at title screen rolls. In final version memory areas for storing key sequence and for checking this sequence is different so it isn't possible to trigger cheat. Anyway, cheat counter don't reading at all in game, so it absolutely unuseful. It may be used as default round time counter. 0x50, 0x51 vars are counter in decimal notation, 0x4F main cheat flag, 0x53-0x5C sequence check area, 0x52 - sequence length variable. 0xAD-0xB6 - sequence store area, 0xAC - sequence length var (uninitialized by default, may be any index in zero memory).