Another useful command to find out things (I think its useful mostly for the datablocks section) is tree();
Two GUI menus will pop up and you can look at the stats for particles, emitters, playertypes, and other stuff you can't read (because its compressed or encrypted or something like that, BADSPOT DOESN'T WANT YOU TO CHANGE THE GAME ITSELF.) That's how I found out I could change the jet emitters on playertypes, I set standard players jet emitter to paint can spray, it was funny.