Instead of instant KO, make it a whirlpool that spins players before flinging them out.
Spinner Jump maybe after time runs out ko (Last 1 Minute) but might be too hard for casuals
A long horizontal pole or soft cloth arm rotates 360° around a center point.
Players must jump, duck, or dodge the spinning beam to avoid being swept off their feet.
It speeds up over time and occasionally changes direction or height for extra mayhem.
Or just a knockout if it happens.