This brings back so many memories.
A while back there was a handheld game called "Lights Out" which is basically the same version of this. I love both of them now, and this one especially because of the hall of fame. This way you can compete against everybody, which is more fun.
Overall, good game, really fun, a good challenge.
Unless you get really lucky with the way the yellows are positioned, it's almost impossibe. Add an easy mode. :)
kinda hard, but really good! maybe next time make it a little easier
its not new, but its very addicting