This article has a talk page!Super E.D.F.: Earth Defense Force has you fighting off those bugs-- Wait, wrong game. This completely unrelated game is a side-scrolling shmup, and is a port of the arcade game Earth Defense Force, which just to be clear, is not at all related to the series of third-person shooters where you fight giant bugs. Let's get that out of the way right now that they are NOT THE SAME GAME.
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Invincibility#
While paused, press A, B, X, Y, L, R, Up, Down, Left, Right. The game resumes automatically with invincibility enabled.
This cheat only works with the Japanese version. In the US and European versions, the subroutine for the cheat entry exists but is never called.
(Source: Game Winners (cheat code))