I bought MDK having played the first game, and the sequel brings a lot more variety to the table. Each main character plays like a completely different game, with different skills and different action. If you like over-the-top ridiculous action, that is simply fun without a whole lot of thinking, MDK2 is worth your money.
I would highly recommend Freespace 2 for anyone who is a fan of flight combat, space combat, or just sci-fi. It's a great experience, even better if you have a joystick handy. The missions are varied and interesting. There are plenty of gameplay options, and plenty of action.
