Xevious (Arcade)

A much-loved top-down shooter with a startlingly over-complicated plot that factors into gameplay in exactly zero ways. A "sequel" called Super Xevious was also released that made the game harder and fixed some bugs.

Developer Credit
Xevious contains a hidden developer message that, for once, is quite easy to find. Start level one, then immediately fly to the right and mash the Bomb button for a while. The message "NAMCO ORIGINAL program by EVEZOO" will appear at the bottom of the screen, and you'll be rewarded with a whopping ten points.

This trick also works in Super Xevious, but with a subtly different message: "Special thanks for you by game designer EVEZOO"

When the game was remade as Xevious Arrangement on Namco Classic Collection Vol. 1, the message was changed: "This game is dedicated to the original XEVIOUS staff."

In the original Xevious, this trick also doubles as an anti-piracy method! On pirated boards, the message changes to "DEAD COPY production/copy under NAMCO program". This check seems to have been removed in Super Xevious.

Namco Museum DS keeps this easter egg intact, with a setting in the "Hardcore Options" menu to display the DEAD COPY message instead.