Castlevania: Lords of Shadow

Outer Wall

Kill 10 gremlins using only your silver daggers: You'll need quite a few daggers for this one. There will be a part where you have to turn a switch to move a gate. Here you will be swarmed by flying gremlins, charge up your daggers by holding then let go, this should kill a few, repeat this for all the enemies. If you need daggers during this, they will drop some.

The Clockwork Tower

Beat the level in 5:00 Minutes: Get to the top as fast as you can. This one really isn't all that hard, I made a few mistakes and even stopped to pick up a gem and I had some time left over. When you get to the spider, just use a dark crystal or Final Light to kill him quickly.

Olrox

Keep the focus meter full for 60 seconds: Counter Olrox to get the meter full. Now just hit and run for 60 seconds. Dodge as often as you can and make sure to keep a good distance away from him, as he will randomly jump on you to suck your blood and this ruin your focus meter.

Throne Room

The Shadow Lord kills 10 of her own vampires: Do not kill any of the vampires as you will need the Shadow Lord to kill them instead. A great way of keeping them together is using -, this will hurt the vampires around you then bring them together at the last part of the combo, you can keep doing this to group them up in one spot. When the Shadow Lord attacks, just run back and the attack should kill all the vampies, rinse and repeat.