Can anyone help me with

[Defiant]

The first trick in this video: http://youtube.com/watch?v=pSPgMPm5HPQ&feature=related

Seems like every time I do it, I jump too high or just one shot goes off. Any advice?

 

[Roman.]

Put your index finger on the jump and thumb on B. Then you just have to figure out the timing.

 

[Junpappy]

You might also try using only the control stick to do it, and asking in the stickied threads (the DaShizWiz one to be more specific) for additional questions.

 

[Vro]

That's a Ledge Hop Double Laser. Just drop from the ledge, quickly jump, and shoot twice. Remember, practice makes perfect.

 

[Miharu]

If it'is LHDL (Ledgehop Double Laser), then it doesn't matter how quickly you jump, but rather how quickly you press B AFTER jumping.

So you drop from the ledge, jump, then immediately after jumping, press B and DI in towards the stage. If done correctly, you should fire two lasers which are on about the same level as each other.