Hazards Mind the thing was with the lasers my new partner and my teacher were talking bout how the coding may be easier especially because u helped me with the first 1 by 1 light up, the problem is that the hardware would just be very difficult just building the box and precisely cutting all the lasers and sensors. My teach said he liked the button idea (he thought about that a long time ago just didn't tell me so I would learn the hard way). My idea is having 5 buttons that go up and down so that each button is used for a certain row. Then have 5 buttons in a row on the bottom and each button is assigned to a column. I'll draw it up so u guys could understand but if you guys could let me know if this could work out that be great.