Ray Hound can be fun to figure out - in short, you control things with the mouse. When you hit the mouse button you can grab the rays shot by the baddies, and throw them around, hopefully hitting the baddies to blow them up. If you move quickly enough into rays you have a chance of deflecting them.
Warning Forever has English instructions, yay :)
Sadly neither game works under the latest available Wine for Ubuntu (0.9.50)