I just took it yesterday and its not too difficult. Legally I can't tell you whats on it but it does require a certain level of hand-eye coordination. If you play video games at all that might help. Just try your best. If you've already taken the AFOQT than you should get your PCSM score pretty quickly. I took the AFOQT 2 weeks ago, took the TBAS yesterday and had my score PCSM score this morning (96 out of 99! ) Anything over 200 flight hours also helps your score quite a bit. Get a good nights sleep, eat a good breakfest, and good luck!