The document provides instructions for creating a countdown timer, spawning enemies, and a Kodu challenge to make a game with those elements. It explains how to create a 'referee' object to track time remaining, program it to subtract one second each turn from the start time. It also describes how to create an enemy, make it 'creatable', and program a spawning object to create enemies using a timer. The challenge is to make a game with a score, timer, spawning enemies, objectives, and clear win/lose conditions in an interesting world.

1. Creating a countdown timer
First create a ‘referee’ object.
Trees are good for this
Then program the ‘referee’
First line: Sets up
the start time
Second line:
Subtracts one
each second
From the ‘World’ menu item
you can set the score
visiblity to ‘quiet’

2. Spawning enemies
First create one enemy. Get it just right. Not too hard, not too easy
From the enemy’s ‘Change Settings’ menu, set to ‘Creatable’
Now it won’t appear in the
game unless you create it
Create a new object – a spawner – Saucers are good for this.
Program it to wander around
And use a timer to create enemies. You’ll find the action under
Actions, Create, Creatables. Your enemy should be there

3. Kodu Challenge
Make a game that:
• Includes a score and a timer
• Has enemies that spawn
• Has objectives
• Has a clear win and lose outcome
• Takes place in an interesting world

4. Cut
Program
Properties
Tools
Menu
Zoom
Colour
Size
Paste
Zoom
Select
Camera