Histun Shuffling is a tech in ASB1 which provides a way of taking advantage of hitstun from attack to move you away or through your opponent.
How hitstun works in ASB1 is that you move in in the direction your character's back is facing when you take a hit. This means in between multi-hit moves and combos, it is possible to change the direction of which you move. This can disrupt a combo, allow you to initiate your own or allow you to recover from the ledge by hitstun shuffling in the opposite direction..
It should be noted that after hitting the blast zone and respawning, all long as you don't move, you will not move at all during hitstun. Use this to your advantage to try and bait an opponent in.