Python Aliens Invaders: Keeping Score [closed]

Python Aliens Invaders: Keeping Score [closed]

References

Reference NO 1

http://environment.nationalgeographic.com/environment/habitats/attack-alien-invaders/

Reference NO 2

http://www.tuxradar.com/content/code-project-build-space-invaders-clone

Reference NO 3

http://stackoverflow.com/questions/11660243/pygame-space-invaders-aliens

Reference NO 4

http://informatics.indiana.edu/larryy/i210/lectures/CH09.ppt

Reference NO 5

http://www.theguardian.com/music/2012/jul/24/terry-jones-owl-pussycat-opera

Reference NO 6

http://www.ibras.dk/montypython/episode07.htm

Reference NO 7

http://www.fort.usgs.gov/Products/Publications/23466a/23466a.pdf

Reference NO 8

http://www.imdb.com/title/tt1680138/