"Um..I'm not sure hypnosis counts as a martial art....."-Commentator (DB049)
Minminken or the 'Nighty-night baby attack" is a technique used by Kame Sen'nin against Son Goku in the 21st Ten'kaichi Budokai tournament. The attack puts the enemy to sleep with hypnosis.
Dragon Ball OnlineEdit
A variation of the technique exists as a Skill in Dragon Ball Online, learn-able by Spiritualists from level 20 as a branch-off from the Spiritual Damage Cut skill.