Achievement Unlocked/YMMV


 * Critical Research Failure: In the first game, the description for the "Too Much Contra" achievement, obtained from entering the Konami Code, calls it "the level select code from Contra". Putting the Konami Code into Contra gives you thirty lives - it doesn't let you select a level.
 * Ear Worm - Before you complete or give up, the mellow but persistent trumpeting will infect your skull.
 * It only gets better with the piano music in the second game.