Concept of this test minigame is quite good... you could add some levels, I would play it.
Adding more tests was the original plan :) We may build on this idea for a mobile game.
yes, mobile is a good aprouch to this mechanics... Can I use too? I'm currently looking for something simple to create - just publish a long project and looking for sth I can create in one month. (I know I can... I'm just pretending a nice guy ;) )