Castlevania: Aria of Sorrow/Clock Tower

Death
On the first phase, death uses the following attacks:
 * There will be a continuous appearance of small scythes that will fly towards you.
 * The scythe will start spinning quickly, and approach you.
 * Death will try hitting you with vertical beams, which are dodged simply by moving.

When you inflict enough damage on this scythe, Death will fight you himself, and use the following attacks:
 * Death will float to about your level, and make a charging attack with his double scythe. Either jump over him or duck the attack.
 * Death will throw the scythe at you. Duck under it.
 * Death will release the scythe, having it spin along the ceiling to the right. It will then come charging towards you on the ground - double jump over it.

Once Death is defeated, he will be pulled into the vortex, but the double scythe will still dangerous until it falls off the screen.

Continue left to collect the Scula soul, which allows you to walk underwater.