I past it to my friend that he is good at this. No less than 2.31! (he played till 3.31)
What I like from this game is its simplicity and it is perfect for mobile casual market. If you add a little challenge it can be very interesting.
:D I had another one in mind to share with, but he is in a trip now. If he has time he will definitively beat your record.
The more games you do, the sharper your mind goes. Do not stop, specially at the begining. Some become (comercially speaking) successful on the 3rd or 5th game. Rare are the cases it is on the 1st one.