Note: This game is not mobile friendly, so you can only use it on a laptop, a computer, or whatever that has a keyboard. And if the green flag has a black outline, then click anywhere on the screen and start. Click space to go up. Release to go down. Every 5 seconds, the spikes get closer. However, sometimes there will be more obstacles. There are also coins, which give you 5 score.
Thanks to @FlippyCatFan for the music! Otherwise code all myself!