use the arrow keys to move to the ball on the left (totally not because the other two balls are broken, definitely not). when prompted, type Yes. From there, just read. once the dialogue is over, click the See inside button. Find the sprites labled Dogton, Dalfish, and Hooton. Clicking the sprite, then the costumes tab will show you the costumes for the evolutions. The idea is, each evolution will occur when you battle and beat a scientist who discovered a new atom model (Democritus, John Dalton, J.J. Thomson, Ernest Rutherford, etcetera.)
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