5 Top drawer, keeps you sharpFozzySPF | 28/11/2007 | See all FozzySPF's reviews (58)Top 100 Games Reviewer Brilliant game, certainly keeps your brain in touch. I started at brain age 67 (im 29 years old). Im now down to brain age 20 and able to hold it at that.It has loads of different challenges to give you a varied work out. My fave is the simple 20 calculations, top record so far is 15 secs.I certainly recommend this game, Big Brain Academy is good too and maybe a little more suitable for the younger player. Oh and lots of Suduko puzzles in this game too, i never tried it until i got this game and now hooked.