In this version you can toggle the button below
Think or Type Answers.

As soon as you type the correct answer, the box will change colour.
If you run out of time with the incorrect or no answer, the box will turn red.
Mouse over the red box to see the correct answer.
The typing version gives you a score  (row 1 = 1 point, row 2 = 2... etc , etc).
The timer still works, but you can't currently see the countdown in 'type answer' mode.
Click the buttons on the right of the timer to change speed.