Dr. Shinozuka has captured fireflies in a clearly... poorly throughout plan to take over the world! I mean seriously... how is he going to use fireflies to take over the world? Unless he somehow chemically alter their DNA so that at night instead of them glowing they would create explosions. Then you would be like a swarm of kamikazi bugs that you could release anywhere, oh my gosh he is evil... and a genius! Click the crates to unlock the fireflies and make sure the next path lines up with the freed firefly either horizontally, vertically or diagonally.