If you want the scripts to run fast or at a decent speed, you must be on the project page that you are currently on and refresh the page again if all the movements in the project are slow. Press these buttons in the demo below: A or the left button to move left. D or right button to move right. W or up button to jump. The Spacebar to shoot. Z to turn the gun to the left. X to turn the gun to the right. P to pause or resume the game. S to show or hide the health bar, ammunition sign and level number sign. M to show how much money you have. You must avoid enemies that wear black masks. You must also avoid nails and spinning propellers. You must even avoid bullets that are used by enemies. Some enemies have guns.
I used paint.net to do the graphics. I used LabChirp to make sound effects and used Audacity to edit them.