Thank you Pirate Hearts for examining about Japanese keyboard. But the key didn't work. Actually, the key you indicated is "Japanese input method on/off toggle button" I said before. I think pressing the key is absorbed by keyboard driver.

Finally, I found a solution. I opened Device Manager and switched the keyboard driver from 'for Japanese keyboard' to 'for US keyboard'. It effected and the console was displayed with the key.

And... I won the game!! Thank you for special and exciting gaming experience!

Great game! I love the CRT effect and stage graphics.

I got 96%, but I cannot finish the game, because I cannot bring up 'console'. I'm playing with Japanese keyboard (and Japanese Version of Windows XP). the matters are similar to these complained by TriStarch and Hempuli‽.

It seems that the key to bring up console is assigned to '0x35 Keyboard Grave Accent and Tilde' in '10 Keyboard/Keypad Page (0x07)' from 'Universal Serial Bus HID Usage Tables' (http://www.usb.org/developers/devclass_docs/Hut1_11.pdf). The key is not exists on Japanese keyboard. The code '0x35' for the key is assigned as "Japanese input method on/off toggle button". So, pressing the key is absorbed by OS (or Drivers?) and never reach the application.

Please make 'console' key customizable. All Japanese players are waiting it.