I don't like how there's something to skip the storyline stuff, but not the biology information which actually has no direct impact on the game. Either let us skip both or neither.
The Challenge is misleading. "Complete the first 3 tracks [Best so far: ]" I'm not sure if it means do all five star things or just win, so I'm not sure whether or not to submit a missing achievement ticket.
Right click as soon as it starts and move offscreen. As soon as you see the green cannon, you need to move the mouse back on-screen, dodge its shots normally, as well as the next thing. Then you can rightclick and move offscreen till you win.
While it's great you've made a new one, it's annoying that you still haven't fixed the running training. It's still way too easy to jump over one ball simply to land on another because you can't control exactly when or how far he jumps.
I realize this usually goes against the idea of games like this, but you absolutely need to release an accepted words list, because (and yes, I actually calculated it here) 47% of the words I've attempted to use so far have been invalid, when I'm spelling them correctly, such as "indians", "rosacea", and "footspeed".