I assume you followed the tutorial by a man we all love and adore that's why I think this is your first game... art is good... over all the game is great but you could add some kind of object that adds 1 to your health after that you could make the game actually infinite "run game" that would be actually playable and there's this strange glitch when I started the game for the first time I was able to move 1 extra space down and up (so there was 5 places I could have gone to)