[[cheap LED light sensor|LED light sensor]]

[[First generation of the game|Space Invaders 2.1]]

[[Second generation of the game|Space Invaders 2.2]]

[[I/O Expander|I/O Expander]]

[[Shift Register|Shift Register]]

[[Servo Controller|Servo Controller]]

[[Shooting in an interesting way|Shooting]]

[[[Third generation of the game|Space Invaders 2.3]]

[[Fourth generation of the game|Space Invaders 2.4]]

All code thus far was created by Nicholas Mitchell for the Space Invader's group.  Any and all who look at this code may feel free to use this code for whatever their purposes may be.

Circuit diagrams coming soon to an internet near you!