In Kanto, don't assume you can't escape Pokémon Mansion, if you don't have escape ropes or dig. I thought I got locked in, in yellow a while back, but I needed to press the switch to get out. I was so angry with my self. I had a lvl 70 Pikachu, lvl 50 Charizard, Venusaur, and Blastoise, a level 45 Muk, and a lvl 45 Pidgeot. I had these lvl's before the 7th gym leader, if only I used my brain back then. Rather than forcing my self into a new game. =(