If you make it past 18 seconds, you're very good.
It's been rumoured that US Air Force trainees have to last 2 whole minutes.
ok my best time so far is 27.031, its hard tho, but great fun, i will keep at it.
Mine is 22.898.
takes practice, i noticed that the shapes go the same way everytime so u just have to remeber where u go wrong and try and get past that point each time, took me about 10 attempts to get that score, ok new high score 29.625