Yes.
Well, not in your party (max. 6), but you can have more than 6 in your little pokebox thing at the Pokemon centers.
1. its SOUL SILVER and 2. yes you can you can buy it at a department store.
No.Heart gold has a couple more Pokemon than soul silver
You can get more than one by matching all of the digits in the lottery.
Of course soul silver is better. With thepokewalker it's a way to get a variety of pokemon. Also there kanto
I have Pokemon HeartGold, and I'll be more than willing to trade some Pokemon with you if you like ^^
Switch Pokemon after every 20 blocks.
higher than his
you can get mewtwo more than once if you get it in firered or leafgreen and trade it via pal park
Trade Pokemon that you have more than one of for Pokemon that you don't have. If you have AR, you can just clone Pokemon to trade.
You will not encounter any Pokemon as long as their level is lower than the first Pokemon in your party.
no
yes entei that is just a leg but if you are talking about Pokemon than yes rapidash growlite and many more there near mt silver