An airstall is a piece of tech allowing the user to gain a lot of height while keeping possession. The use of an airstall often leads to a Momentum Transfer but there are many uses.

How to do an airstall

1. Find a way to gain upwards momentum, often through a jump but there are other methods
2. Drop the ball while the beetle is facing up, if doing an air stall from a jump release immediately after you hit the jump button
3. Wait for grab cooldown to refresh
4. Headbutt Grab towards the ball

This will gain a lot of height.

One mistake to avoid is shooting it up and headbutt grabbing it, this loses possession of the ball making it easier for the opponent to steal.