Click the space bar to "flap". You don't want to touch the red, or the bottom of the screen You will have seven seconds to get prepared for the obstacles, but make sure you don't touch the ground or the top.
Thanks for @sfdanm for helping me with the y position stuff... I just typed "y", unknowing of the y position thing. March 6th- added the "if touching top die" March 5th- released game Log-