Now let's build a game. Biff needs to collect 5 crystals. One complication... the big blue sea is crawling with sharks! Avoid the sharks while collecting 5 crystals to win the game. But watch out! Touch a shark and you will lose your health. Press space to fire lazers, up for bomb and down for rockets. Good luck!
functions, simple messaging, simple events, advanced costume handling, simple sound playing, simple loops, basic math, visibility, graphic effects, delays,