Goliath is a 2.5D platformer in which the player must scale and destroy massive walking battle tanks, known as "goliaths," using only a grappling hook.
Located all over the goliath are a number of different "weak points." If a player manages to get close enough to a weak point, he can shoot and destroy it using the grappling hook fire. Destroying weak points will blow off armor pieces from the goliath until it is destroyed.
The fun factor in Goliath comes from the deep grappling and physics system. Players can aim their grappling hook reticule using the mouse and can then fire it at different spots on the goliath (marked in red) in order to attach to it. Once attached, the player can swing back and forth and then release in order to make huge leaps.
It is important to note than when the player is standing on or grappled to the goliath, because of the physics implemented, he will gain momentum as the goliath moves its limbs or walks. This is where players can really experiment and try to push the game to its limits...
If the player were to attach to the foot of the goliath and then wait to start swinging until the goliath takes a step, he can accumulate a huge amount of momentum and then launch all the way to the other side of the beast. Because of this physics system, players can find new strategies to defeat the goliath based on how it moves. (see the beginning of the trailer for an example of this!)