Mole Strike Technique is a derivative ninjutsu of Earth Style: Mole Hiding Technique. The user moves underground at high speed, then bursts out right in front of the enemy and strikes with a stick. Unlike the basic technique, this one is designed for quickly and consecutively hitting multiple targets - the ninja emerges from underground before each enemy in turn, not giving them time to recover.
(It should be noted that the technique only appeared in the anime and does not fully correspond to the established rules of the Naruto world. Being, like the basic Mole Hiding Technique, an Earth Style technique, but in the shown moments Obito sinks into a tree. The realism of what was shown can be questioned)