I loved to watch other people create games especially this game (a knock off of asteroids) called lemoniods which griffpatch made a series of creating this game of which I renamed to lemon attack the premise is simple use the arrow keys to move (side note this is a scrolling game as well) the mouse to shoot the fruits I also made the t and y keys the volume buttons, there are 3 types of fruit oranges, limes and lemons, you shoot them to destroy them and gain points, but watch out because when you destroy a fruit it splits into 2 smaller fruits that have less hp but move faster. either way I hope this helped you get started.
thanks to griffpatch for the lemonoid assets sprites and sounds my high score is 1830