During the game, on Controller two, press A to cycle through the four different background melodies, and press B to toggle music off and on.
Ending
Input the second tile in the second row from the top (two chips) as the first spot, then the character for "middle" at the left of END for the second spot. Press END around 20 times to get the Ending started.
Round Select
Use a combination of two top row numbers (1 through 9 in Chinese/Japanese characters, 0 is the first character in the 2nd row) to warp to the desired round. For example, 9 9 will go to Round 99. Press END to confirm.
Round Select
Use a combination of two top row numbers (1 through 9 in Chinese/Japanese characters, 0 is the first character in the 2nd row) to warp to the desired round. For example, 9 9 will go to Round 99. Press END to confirm.
Various Passwords
Use the password to select a round but have no score. Think of the password screen as an (x,y) grid to select the tiles. You must press END five times to confirm.
Control the BGM...