Hold A, B, Start and Select.
To soft reset hold down L+R+START+SELECt to return to the title menu.
a b select start at the same time ;)
Yes you can trade leafgreen version Pokemon to another leafgreen version.
L+R+start+select at the same time
You can use soft reset to keep trying until the Pokemon is a shiny. pressing L+R+Sel+Start will reset the DS. There is a 1 in 8192 chance that a wild Pokemon will be shiny.For shiny legendary Pokemon or similar, you can save just before you start the battle. You can soft reset until you get a shiny legendary. (which can literally take thousands of tries)For shiny starter Pokemon, if you save just before you enter the room where you pick your first Pokemon, you can see their picture (if they are shiny the picture will look different). This is a 3 in 8192 chance of one of them being shiny (still very low)
Soft reset for Pokemon Diamond is R+L+Start+Select.
To catch Mewtwo in LeafGreen or FireRed no. To migrate Mewtwo from LeafGreen or FireRed to Diamond/Pearl/Platinum yes you have to have it in Diamond/Pearl/Platinum.
Soft reset
Yes.
To soft reset hold down L+R+START+SELECt to return to the title menu.
L+R+Select+Start
You could cheat or soft reset.
r+l+start+select
No you don't, you will rarely encounter them in the wild.
You can by soft resetting a numerous amount of times.
a b select start at the same time ;)
Yes you can trade leafgreen version Pokemon to another leafgreen version.