EXTEND: Now it's time to modify and extend your game! Be sure to meet these minimum technical requirements:

1. Make the game easier or harder by adding more kittens or more zombies.
2. Use Random Integer to set the speed of the zombies.
3. Use a Text command from Shapes to set a win/loss end-of-game message.
4. When you're done, click Submit and Next to continue!

To navigate the page using the TAB key, first press ESC to exit the code editor.