Spiked blocks moving in on Kratos

The Poseidon's mouth is a dangerous trap located in the underwater part of the Challenge of Poseidon in God of War. Kratos swims through the "mouth" and enters a long tunnel with huge saws and spike-covered platforms. Both traps move inward as he swims through the passage, and kill him if he doesn't make it out in time. He must swim dash across in order to make it out alive.