Yep, on start-up. No idea if it's useful at all. Maybe it can combo into Seed Bomb with godlike timing if the knockback doesn't lift an opponent off the ground or somethin'... which would still be risky 'n useless.
Originally Posted by Mr. MR
Also, little known fact, Snake can move while grabbing people
I knew that since I've read every characters' P:M description thing.