The reboot uses a "counter-breaker" system. Ordinarily a combo will only allow a certain amount of damage before the opponent falls over (unless you "cash out" the combo with an ender), but if you can bait the opponent into trying a combo-breaker that hits while you're in a counter-breaker state, you essentially break the breaker and get a reset on the combo's damage limit, while locking them out from trying to break again for several seconds. As the video shows, if you can get the opponent to try to combo-break into a counter-breaker several times, you can essentially prolong the combo until the opponent runs out of life.
