Nioh

Given after defeating a huge skeleton.
The tactics are quite elementary, but you need to get to it.
1) Be sure to take from Tenkai (the magician with a rag on his face) an object that can be used to invert the effect of the crystals. I'm talking about those three huge red crystals that stand on three sides of the boss arena. To carry out cleansing, you need to approach the crystal and hold the circle. First, of course, it is better to clear the area around. After clearing, red areas on the ground will give short-term buffs to defense, attack and stamina restoration. Very useful in battle.
2) Jump into the arena to the boss. It can be done from any side, it’s not particularly important.
3) First of all, hit one of the legs, periodically running away from the stomp and tail. Having knocked down the life strip of your legs, immediately rush along the side slopes to the very top (opposite the location of Hattori Hanzo), because soon the skeleton will fall and its head will be exactly in the zone of two orange areas (giving a buff). Run up and hit him on the head with strong blows. When the skeleton gets up, immediately jump down, otherwise he will slam you with his palms. After that, repeat all this with the second leg.
4) The legs are over, which means it’s time to work on the arms. Run to the middle platform and wait for the skeleton to swing its arms. Here, either stand in the block or dodge to one side. After this, hit your hand and continue following the pattern.
5) Be sure to be careful not to take out several limbs at once, but it is quite possible to prepare them for finishing, leaving a couple of blows for the future.
6) You can fire a cannon into the skeleton’s belly. This helps too. But there will most likely not be enough ammunition.
7) When the limbs run out, the head may still have health left. Don't worry - the health of your feet will be restored by then and you can take them out again.