well i see what you were trying to do but it isnt a good game at all. i guess it does what it says it does everything works properly. but a game about flipping a coin? really? this is not interesting or new or anything that would make it worth having on ng. sorry..
All I see is a screen telling me to download something and that it's encrypted.
Its not a bad concept for a time waster. That being said its fairly dull even for that. If you have the skill might i suggest adding some music or even some animations or pictures as a reward if you get to cretin milestones in the score. Just an idea to give it some texture and not be so bland in my opinion.