Here's how you do it:
Dash, let go of the Circle Pad, press attack.
It's possible to start a DA at frame 2 this way, but you'll need super-quick fingers to do so.
The game reads the series of inputs as follows:
Frame 1 , Frame 2 + = Fsmash
Frame 1 , Frame 2 = Dash Attack
Unfortunately, though, since the buffering-system is different in this game, you can't buffer a frame 1 iDA.
Dash, let go of the Circle Pad, press attack.
It's possible to start a DA at frame 2 this way, but you'll need super-quick fingers to do so.
The game reads the series of inputs as follows:
Frame 1 , Frame 2 + = Fsmash
Frame 1 , Frame 2 = Dash Attack
Unfortunately, though, since the buffering-system is different in this game, you can't buffer a frame 1 iDA.