We stumbled upon a great site packed with free koala games you can play online… Boowa & Kwala… it literally has hundreds of different games in a dozen or so categories. Coloring pages, find-the-difference games, stories, songs… you name it! Check it out!

INSTRUCTIONS
Right click on the graphic of your choice.
Save image as…(name it whatever you want — something you will remember.)
Then when you make your webpage, simply add it as the background (tiled).
The graphics will not have the white box outline around them.