Sith Strike was a force attack that appeared in the Wii and PSP versions of the first Force Unleashed game. The only known user was Galen Marek.
Sith Strike was a force power, that after infusing your lightsabers with force push, lifted up and slammed an opponent to the ground, which probably broke their spine. Sith Strike was best used against a single enemy. It was very effective against weak enemies, and half as effective against hardened combatants.