[fsckboy]

how about a version that shows all the words at once and you can work on them in the order you want, skip and go back. (for a phone show one and a person can click "later" to move a difficult word to the end of the queue)

and the whole thing is timed counting up, and how long it took is the score.

the way it is now with a countdown timer for each word, the player doesn't get a reward for solving something quickly