Now let's build a game. Biff needs to collect 5 crystals. One complication... the moon base is crawling with zombies! Avoid the zombies while collecting 5 crystals to win the game. But watch out! Touch a zombie and you will lose your health. If you press the up key it will shoot a rocket to kill a zombie. The space bar will shoot laser to also kill Zombies.Control the movement of Biff with the mouse pointer.
functions, simple messaging, simple events, advanced costume handling, simple sound playing, simple loops, basic math, visibility, graphic effects, delays,