I think I broke the game.

I started going for the achievement for eating everything in the game, and also wanted to try Ramona out. Problem is Ramona is built to be most effective with weapons, which I don't really use. I played through the first level a ton of times, and while buying all of the food in the level an beating up tons of people, I leveled up a ton. After that I took all of the extra money I had and bought two bionic arms, a speedy the porcupine, and some random books and CDs.

After that I found a code on gamefaqs that let's you start out with the power of love. I punched it in out of curiosity.

Now I am so overpowered that I can swing my sword to hit enemies, and hit random objects so hard that the repeatedly bounce around the map. If I knock an enemy flying, I find the coins that they dropped halfway across the map. I can run and throw an object so hard that I can pick it up at the end of the stage. I beat the second boss before he could attack me.

I guess I have to be more careful when I play through with the other characters. I have never seen a game that let's you OVER level before today.