Yes it is possible but it takes a lot of balls (pun intended). anyways he needs to be asleep or paralyzed with critical health.
Ultra ball.
yes but you need 50 ultra balls
With an ultra ball or master ball in sky tower. The name of it is Rayquaza :)
sky pillar i used master ball cause i wanted to catch him or ultra ball but get it hella weak
yes you can catch almost all legendaries with an ultra ball, but most likely it would take more than three tries, i caught rayquaza with one ultraball and half health.
You can use any pokeball unfortunately it has a low catch rate so it can be difficult to catch it even with a ultra ball
In order to catch your legendary Pokemon in Pokemon Sapphire, save your master ball For Rayquaza...you can catch KYogre/Groudon/both with either an Ultra Ball or Timer Ball.
Ultra ball. if after weakening it fails, put it to sleep and if you are on VBA save it just before using your ultra ball and just keep trying and trying. make sure that rayquaza is on its lowest health possible and make it sleep so it cant use rest to regain its hp. you will need loads of ultra balls and if it just wont work, use your master ball. I caught groudon kyogre and rayquaza with an ultra ball. Hope this helps.
Yes. It is completely possible to catch Mewtwo with an ultra ball.
You need to first weaken it, when its healt bar is red, put it to sleep and use Ultra Balls to try and catch it.
rayquaza. use a master ball on it. is very hard to catch using ultra bal even if it is red and has a status prob.
ultra ball