With 30 words to play (May have some spelling errors >_>)
made in flash 8 (Flash CS4 has A BIG PROBLEM with the Key.getCode())
you can use either, type the letter or click the letter button
enjoy!

btw: there is another notebook like flash animation -> [link] (although is a mathematical joke :S)

Edit: fixed a little "bug", and before I added Mind (the creature of my avatar) and the tip