Lead a Zeb through the room and damage boost off of it to reach the item to the left of the grapple blocks. The respawning Zeb can be used by carfeully luring it while remaining high enough that it does not start moving horizontally. Wait for it to respawn before attempting to guide it. If done properly, the Zeb will continue to move upwards as long as it does not go off screen horizontally. On the floating platform by the grapple blocks, jump and aim down to lower the camera, then run and jump into the Zeb once it is visible.