Good!

Research has shown that games of this nature do in fact increase cognitive abilities and sustain memory. With that said, the developer should check their facts. The game opens stating that we use 10% of our brains. There has been no evidence proving this to be true. Multiple clinical studies have shown this in fact to be wrong. Outside of that, the games are fun, and increasingly challenging. I try to play once to twice a day and have noticed an increase in my cognitive performance.

JBManic about Brain Challenge™, v1.0.0