What is the cheat to LEGO universe

Lego Universe is an MMO, not a regular video game. A lot of people fail to understand the difference, but you can't cheat in MMOs like you can in regular video games. (ie, there is no cheat console to input things such as "more money", but the only cheats are hacks which will get you banned)
However, MMO companies occasionally give away special offers where you can input a code on the website to get an exclusive item or pet, etc.