Urrrghhh...
I beat that game start to finish, fair and square, 0 cheats, heck even 0 tricks
the only thing I did during that time is look a video strategy on how to beat the final boss.
Its like you guys saying, if you played through the game once, then you can only beat it once because only the first time counts.
The second time(and every other time) does not, because you have seen it all already so that doesn't count, you have to play as if you do not know how the next level looks like or what enemies are in there.