Now let's build a game. Biff needs to collect 6 power crystals. One complication... the moon base is crawling with zombies! Avoid the zombies while collecting 6 power cells to win the game. But watch out! Touch a zombie and you will lose 2 of your health.
functions, simple messaging, simple events, advanced costume handling, simple sound playing, simple loops, basic math, visibility, graphic effects, delays,