A level that forces you to use your weaponry to advance, and all stages are differently themed using every characters assets. Furthermore, I did hid a few secret, you can complete all your weaponry and release the secret weapon, if you can find it. PLOT: It is a rumor... an old tale, maybe sugar coated in exagerations. But in his diary, the doctor state he developped, enginered and perfected a creature with killer instincts and unimaginable destructive prowess... Perhaps protecting the humanity and robots alike would be much easier... that is if you can tame it... and locate it. Also DR Light mentionned something once, that the key is is still buried somewhere and that we couldn't locate it, in fact, no one could find it. As you ponder the whereabouts, the old coated scientist jacks you and you recognize those diverse simulations. You've been there before, so you brace yourself in hope you can provide help in locating the key to that giant sealed and dusty door, sealed from all... even the doctor and perhaps reunite the good doctor with his nearly finished blueprints. As for the location of the key itself? The good doctor cannot remember sadly, only blurried memories, and clearly fear, dread that it might be a bad idea...So you are tasked to revisit past locations in hope you can help the finalisation of the weapon. But he insist... ''Perhaps for the best it remains lost due to it's destructive capabilities, not all things should be designed and operational.'' So jack in, bold, brave, fools or daring one and relive some epic scene from your past challenges and maybe... you will find this mythical weapon.