Click Play, then try to avoid all of the yellow things trying to kill you. If you touch one, you lose. Use the arrow keys to move. Avoid has a easy editor inside. Simply enter data in the five lists X: the xpos of the enemy that is spawning Y: the ypos of the enemy that is spawning direction: the direction the enemy is pointing when it spawns time: what time ( on the variable 'timer' ) will the enemy spawn order: enter N for normal spike, T for target spike, B for ball, and P for post.
This is for the entry project in @coocoo333's new contest. Thanks to @coocoo333 for the original project. I changed the whole editing system, and simplified it considerably. I also added a play button, and Posts, a new enemy. Target Spikes were changed to die if they touch the edge of the screen