Knockout City

I got really lucky with this, having gotten 2 triple KO's with the Ultimate ballform attack (when someone throws you up into the air by doing a full charge throw) and the second triple kill came right after the match had ended while everything is in slo-mo so if you manage to get a KO during the slo-mo it does count.

KO streaks do not reset after a round, and KO assists (when you do the first bit of damage on a player and someone else KO's them) count towards your streak. So basically, as long as you don't die and keep doing damage your streak will keep going. *

Having the high ground, getting behind people, using special balls like Sniper Shot or the Ultimate ballform attacks will be the way to go for this because anything you can do to keep yourself outside of the line of fire will only help.

Currently the game only has Team KO and Diamond Dash, Team KO ends a round after 10 KO's and Diamond Dash doesn't end until 30 diamonds are picked up. Diamond Dash will be the easier mode to get this in because there is a very good chance that rounds will have more than 10 KO's in them (if your team is good at picking up your own color diamonds).

* Frankies Back