Addicts beware: you can't stop 'till you beat it!
Really, really, REALLY ADDICTING! I fell in love with this game and spent three hours beatting it and getting the medals. The graphics and animations are clear and gorgeous. The sound is nice quality, and the programming is flawless. It's really like one giant boss battle, though, so once it's beaten, it's pretty much over. However, I consider it a challenge for gamers to try and beat it in one life. Some tips:
The beard will coil before it does a close range strike, so use that as an invitation to flee. Your weapon has a slightly longer range than this attack, so just keep a little distance between the beard and you.
The beard dashes to the side to launch a fire attack. Get on a high platform and get ready to dodge.
You can get stronger if you build up combos on gravestones. Wait till you level up.
The skull only has one attack, and it uses it in a pattern. It goes: left side of screen, middle, right. So hit it when it goes from the right back to the left. It will take a while, but it's safe.