Update 0.22

This is quite a small update but it does make some changes.

FIrstly, Mac OSX users can now enjoy the game, if you would like it then please read the installation instructions. Please note that I cannot test it so I require people to let me know about any issues they encounter.

Another enemy has been implemented, I am unsure on whether this enemy will stay but it does make the game more thrilling and a lot fairer on the player in comparison.

I will probably just keep with two enemies for the time being but this may change in the future. The next update will most likely implement more levels but I cannot promise any huge changes at this time.

Please be sure to suggest any changes that I should make and please let me know about any bugs that you encounter so I can fix them.

Thank you, and happy gaming! Also, I have a challenge for you all; beat my high score: 129. 

I dare you to beat it.