Virtual Police
Infiltrate into the enemy zone, shoot down all the baddies and rescue the hostages in this on-rails shooter.
If you lose all five lives you can use a credit to continue playing. If you have no more credits, it is Game Over. Note that there is a short rest period after a continue. To defeat the Bosses, you must shoot at their weak point. Bosses have more health and deal more damage on harder skill levels (and are much more difficult to beat).
Use your mouse.

The game is totally based on this theory. Basically, you've got two modes - Kung fu and Shooting - which you can switch in between. You can also slow down time, shoot your opponent etc. What makes the game hard is all the combos you can do. Nevertheless, it's one of our favorite internet games.