The basic premise of Hades fighting your way through the Underworld to reach the world above sounds rather simple and surface-level, but there is so much more to be done in the game than you may initially believe.
There are plenty of secrets to uncover, plenty of characters to interact with, and even secret abilities that you can unlock for each weapon in the game. These are called Hidden Aspects, and they completely overhaul the feel of the weapons. Each one corresponds to a particular hero or historical figure and requires specific steps to be taken in order to unlock them.