The color side is a bit funky. Im a graphic designer, so colors are my thing. I end up getting wrong answers recorded on a lot that are just a little too subjective in the answer choices given. Also, my first time playing, I saw a message come up at the bottom of the screen that I had earned a "Klip reward", and I should click to accept it. It disappeared, and was never to be seen again, no way to see it again, no explanation found. Oh well. The game is still fun, and, though not overly challenging in content (simple math), it does get your brain moving. Serves its purpose on that front. Try it, just for fun!
Queencupcake about Twinoo Brain Training