Sonic Unleashed

After the nefarious Dr. Eggman tore the planet to pieces, it is up to Sonic to put everything back together again by reclaiming the power of the chaos emeralds. If Sonic does this, he will put himself in an unexpected circumstance where he will be tested in ways that he has never been tested before, and he will also find himself in a race against time. In Sonic’s most recent adventure, day and night both play distinctly essential yet complementary roles… A fresh experience is about to begin as the sun goes down.