You didnt beat the game
If you only played the game using the factory OEM controller you didnt really beat it because youre using a crutch. Try playing it again using a madcatz. trust me you will get better. youll thank me later. its like playing two games for the price of one.
https://www.youtube.com/watch?v=7GuqFsicnFg
https://www.youtube.com/watch?v=7GuqFsicnFg