Fullscreen recommended. Press any letter to start the game. Press the left arrow to go left and the right arrow to go right. How to win: survive till the end(get 18 or more lives) Take 3000 steps, Jump 5 or more times, Get a score of 400 or more. How to lose: lose all your lifes. Enemy: Immortal flame. Press <spacebar> to shrink Immortal flame temporarily.
Thank everyone. After I saw some of their project, I came up with this idea.