TGDB.NET - Barrage cheats
Print me!

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In the folder JUNK under the folder Barrage is installed into is the
file OPTIONS.DAT. Using a hex editor, go right to the end of this
file to hex position 414. The three bytes at this address when set
to hex 21 21 21 allow access to the first two levels of the six
displayed on the level-select screen.
Changing these three bytes to hex FF FF FF allows access to all
six displayed levels.