This level belongs to Home Row Foundation — master the home row keys - the foundation of touch typing. It drills A, S, D, F, J, K, L and semicolon.
The target is 20 words a minute at 88% accuracy. Three stars need 40 words a minute at 96%, so there is a reason to come back to a level rather than pushing on through material your fingers have not absorbed yet. Accuracy is worth more than speed here: going fast and correcting constantly is slower than going steadily.
Words you will type include all, fall, lass, salad, flask, ska, lads, dads.