1. git clone https://github.com/AdityaYadavalli1/Space-Invaders.git
2. cd Space-Invaders
3. python3 game.py

There are majorly two kinds of missiles the player can shoot.

• Missile 1 kills the alien in one go.
• Missile 2 slows down the alien. Then, after that missile 1 needs to be used in order to shoot down the alien. Advantage of missile 2 is it is faster. Also, for the convenience of the player, once an alien is shot by missile 2, the appearance of the alien is changed.

• Press A to go left
• Press D to go right
• Press Spacebar to shoot one kind of missile (missile 1)
• Press S to shoot another kind of missile (missile 2)
• Press P to know your current score
• Press Q to exit

Note: If you are using MACOS Catalina/Mojave please use the following command to install pygame: pip3 install pygame==2.0.0.dev6