in the fight area but to go you have to do the champions league
He is your rival's father.
Nope. They didn't make any.
In diamond and pearl he will battle you in the fight zone on certain days of the week, in platinum, he will be found in the survival area on certain days
No, unless you have a National Pokedex you might find a trainer who has one in the Battle Tower.
you get BP(battle points) by battling at the battle tower in the battle zone(lolz) after you defeat the elite four and the and finish your pokedex. then you can trade your battle points for stuff liker are candies or TM's
you cant beat the battle tower
after you battle 7 trainers in the battle tower you will get 3bp
you cannot ever beat the battle tower. but if you have completed the sinnoh pokedex then the battle tower will help you complete it. you can battle at the battle tower as long as you want.
There is no Battle Frontier in Pokemon Diamond and Pearl. Only the Battle Tower.
you dont
its a piece of poo
The Battle Tower
in fight area
battle tower
in the battle tower
You have to win 100 battles in the battle tower
after you beat your rival at battle tower he will reappear every so often