Really awesome graphics! Loved the way the difficulty curve rises which just makes it perfect! The audio was completely fantastic! The retro feel was also amazing! Tip: Just add a sign before the 'X' in your game that says 'Controls' because I just thought that it was a random cross put there to give it a better feel. I discovered that it is 'x' to jump after pressing each and every key on the keyboard :P. Otherwise it was an awesome game! Keep up the good work!