Only once.
2 heart gold- kyogre and rayquaza soul silver- groudon and rayquaza
There are many things you can do.You can get Bulbasaur, Charmander, or Squirtle for Prof. OakYou can go to Mr. Pokemon's house, get the red orb, and catch groudon in embedded tower.You can verse the elite four, but they have stronger Pokemon this time.To get to embedded tower, your must go to Cianwood city, then go through the first cave. On the cave with two ladders, chose the one going down. When you get out, DO NOT go up the waterfall. Go the other way. When you get to a place with land, get on it and navigate your way to the embedded tower. WARNING! IT IS REALLY A CAVE WITH A HIKER STANDING NEXT TO IT!
You can only catch him once.
You can do many things, you can get the hoenn starters by talking to steven stone in silph co you can catch groudon by talking to mr Pokemon then going to the embedded tower( on the route to the safari zone) trde kyogre with a friend with Pokemon heart gold and talk to oak to get a rayquaza
Suicune, Entei, Raikou, Ho-Oh, Lugia, Moltres, Articuno and Zapdos. If you have an Event Arceus you can also get either Dialga, Palkia or Giratina :) When you beat Red, either Mr Pokemon or Prof. Oak will give you the blue orb which gives you acess to Kyogre at the embedded tower. If you transfer a Groudon over from Heart Gold, Mr Pokemon will give you the Jade orb and Rayquaza becomes available from the embedded tower. Mewtwo can be caught after you get all the gym badges in Cerulean Cave
Sometimes 10 or 40
It isn't a matter of how many times you defeat it; your level and rank need to be high enough.
You have to win 100 consecutive times.
Hundreds of times a year for 33 years.
It has never been seized.
It is about 2.7 times higher.
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