create a platformer game. the character moves over the bottom of the screen using the arrow keys and shoots a small red projectile in the direction it is facing when pressing spacebar. Platforms should be created at different heights, with a maximum of 6 in the screen and they should dissapear after a random number between 5 and 30 seconds. the player and enemies are able to stand on platforms. the enemies walk and jump around and make you lose the game if they touch the character. the enemies die and dissapear if touched by a projectile. some platforms have a chance to appear with a small coin over them that will dissapear when in contact with the character. you should keep count on the top left corner of the screen of the amount of coins collected and enemies killed.