Osteokinesis: Due to their skeletal magic, both Pacifist and Genocide Sans are able to summon bones. These bones attack the soul directly. Sometimes, they'll use Blue Bones, which only hurt when someone moves.

Gaster Blasters: A large draconic skull shaped device that fires out a beam, which attacks the soul directly.

Telekinesis/Blue Magic: Sans can turn your soul blue, making you not able to float freely in the battle box. He can also slam your soul around by using blue magic.

Teleportation