Zap Jump is an advanced technique used for Lucas. It was discovered by Christopher Daniel Winans and shown for the first time in this video. This technique doubles Lucas's second jump.
To execute this move, you must double jump while using PK Fire . The timing takes a bit of practice, but you basically hit the jump right before you use PK Fire and Lucas will shoot up quite a long distance. This can be combined with B-Sticking and Magnet Pull for an impressive recovery.
How it works
Members of Smashboards have discovered why this happens. Normally on Lucas's second jump, an upward force propels him upwards, but the ascent is hindered by a downward force right after this. PK Fire somehow cancels the downward force, causing a huge, fast jump.