Vecmania is the largest compilation cartridge to date for the Vectrex, having clones of nine arcade games of Tempest, Discs of Tron, Missile Command, Space Invaders, and more.
There is a thank you message from the programmer and a hidden game to access.
What to doEdit
To view the message, on the Birds of Prey title screen, press down, then right on the controller. A "Special Bonus" will appear at the bottom of the screen. Press up to see a special thank you message from creator John Dondzila.
To play the hidden game, start a new game of Patriots Remix, score 150 points, then press pause to play Breakout.