In the space game Robot Invasion, Dr. X has "accidentally" created a bad batch of robots. Use all of your skill and speed in this arcade-style game of high stakes in space. Your goal, is to protect the Earth from a robot invasion! To win, you must survive seven waves of robots! Once 8 robots leave the planet, the Earth will be destroyed and the game will end.

How to Play:
1. Pick the difficulty level at the top of the activity window. You can choose one of three levels: 1 = slow; 2 = medium;
3 = fast.

Note: You cannot change the difficulty level once the game has started.

2. Try to stop the robots by whacking them on the head with your space mallet. For each robot you destroy, you get one point. See how many points you have racked up at the end of the game.

Here's a tip! Avoid whacking Doctor-X. Each time you hit him on the head, you lose one point.

3. To start over, click the Reset button in the bottom left corner of the activity window. The Reset button looks like an arrow.

4. To exit the game, click the Close button at the top of the activity window.