Now let's build a game. ghost biff needs to collect 5 yellow stars. One complication... the graveyard is crawling with ghosts! Avoid the ghosts while collecting 5 yellow stars to win the game. But watch out! Touch a ghost and you will lose your health. Also you have a raygun to use your raygun press z
functions, simple messaging, simple events, advanced costume handling, simple sound playing, simple loops, basic math, visibility, graphic effects, delays,