Hi, yes there are glitches one can make use of, but what´s the point in getting supeer rich and invincible. There is the duplication bug, which would make you rich, and used correctely you can level with it on a certain occasion.
BUT: this is heavily unpractical. I would strongly advise you to cheat your char super strong
by using:
Dad's item editor and Zakaron´s save editor 
