Super Smash Bros. Ultimate Guide Ultimate Glossary of Terms and Mechanics
Empty Jump
An aggressive, posturing jump (or hop) with no attack performed. This is most useful to score grabs, since grounded targets who raise shields anticipating jump-in air moves are vulnerable to attackers who fast-fall and grab.
Empty-jumping/hopping can also be used as bait against reactive challengers. If someone is twitchy against jump-ins—always ready with an up special, up tilt, up smash, just generally up—you can hop aggressively without attacking, air-dodging just before you get to them (neutral, for lower landing lag). If you’ve read them correctly, their reactive anti-air will whiff through the air dodge’s intangible period, and you’ll land in time to grab or strike them!