pushing people in fighting games

[Kosheh]

The OP straight-up makes no sense and it's mading to try to make sense it.

Are you talking about platform fighters on the GBA like Rave Master?

IIRC a fighting game looks like this

And this is a platform fighter

reading this over, i think he's referring to player collision and why is it in some platform fighters and some not (iirc, i think in some games you can walk to push them and run lets you go through them?)