Games like Thin Squares are ten a penny these days – you're a blank and you have to collect all the blanks and avoid all the other blanks. So what, big deal.
Thin Squares is, on first sight, just like the others. In Thin Squares, you are a square and you have to collect all the squares that are the same colour as you, while avoiding all the black squares. But Thin Squares throws a few extra bombs into the ring to propell it into something much better – namely the Thin Squares power-ups. They'll make you bigger, make you slower and – in one particularly fiendish manouver – make you completely blind.
