It's a matter of luck. Just keep trying.
As many as you like as long as you go over them if they are laying down. You can even befriend the boss of each area.
If you can't manage to befriend it since its a boss collect 5 charmeleons and release them you will receive a charizard ticket use it to befriend charizard.
kill your pokemon and you die
I think its Mewtwo
Actually that only works on regular pokemon if the boss pad is shiny its a legendary you automatically get it once you beat it a regular boss you get lucky
Use a password or get to the boss and if the catapult is sparkling its a legendary
i think it is darkrai no spoiler alert last boss
You look for a boss bounce pad thats sparkling.
as long as you don't have a Pokemon of a stronger level the boss should fall down so you can get him and release a ton of coins
there is a shiny ! and then you wiil eventualy get a legendery i am already done the game whih pokemon would you want i can tell you where it is
You can get Virizion from a random legendary encounter at Forests (all of them.) Virizion will appear as a boss.
beat the game and go to any beach level. the ! pad (the pad that leads to the boss) may sparkle. if it does, kyogre should be the boss.