HOW TO PLAY:
1. Choose a level – EASY, HARD, or VERY HARD.
2. Click on a circle and listen to the sound. Then click another circle to match the sound.
3. Keep going until all the circles have been matched.
GOOD LUCK!
Source
http://abc.net.au/children/bananas/games/animal_sounds/default2.htm (via Wayback Machine)
Bananas In Pyjamas: Animal Sounds screenshots
