~You play through either Gold, Silver or Crystal using pokemon of only one type (including Duel types who must share the chosen type)
~If your chosen starter is not of the type you picked, you are forbidden to use it.
~No matter how stuck you get you must not use any other types.
~You are allowed to use only ONE set of TMs in GSC and ONE in RBY.
~Trading for evolution is allowed (Machamp, Alakazam, Golem, Gengar). You may trade between GSC games, so long as you do so, when you reach the place said pokemon would naturally appear (ie, Paras at Ilex forest)
~After you pass certain events or feel the need to update, you reply to the topic with details on how your progress is going, the status of your team, how hard it is, etc.
~You may have only ONE member of a famly in your team. That means no duplicating a pokemon to fill your spots. No having two Pikachus to fill out your team.
~You are allowed to link if the pokemon's evolution requires linking. So Kingdra, Steelix, Scizor can be gotten early in game by trading. BUT you can't trade an onix, horsea, scyther, etc from another game so that you will have them in the start! The link is only approved when you have caught the pokemon in it's orginal habitat...
The challenge is considered complete upon the reaching, or defeat of Red(aka Ash).