Now let's build a game. Biff needs to collect 10 power cells. One complication... the moon base is crawling with zombies! Avoid the zombies while collecting 10 power cells to win the game. But watch out! Touch a zombie and you will lose your health. You get only 3 lives.
advanced costume handling, simple sound playing, functions, simple loops, basic math, simple messaging, simple events, visibility, graphic effects, delays,