Ultimate Assassin 2 - Assassinate the guy in the green, but don't get caught by the guards. Arrow keys to move, Z for speed, X for invisibility.
Play this game larger
Mario Star Scramble 2|
Start the game with arrow keys and spacebar. Collect the coins and jump on top of the enemies.
Click on the bulging cows to milk them. Then empy the bucket. When an alien ship comes, press space to switch to shoot.