When the title screen animation is over, but before the logo stops flashing various colors, quickly press Select, B, A, Right, Left, Up, Select, B, Down, Right. If done correctly, a ship's cockpit screen will appear.
Press Up / Down to change the colors, and press Left / Right to change the region of the screen to be edited.
A slightly different copyright statement from the one featured in the game can be found at the beginning of the ROM.
COPYRIGHT 1985 NAMCO LTD.ALL RIGHTS RESERVED
Similar copyrights can be seen in other early NES games from Namco.