This week, Steambirds developer Spry Fox released a new casual puzzle game in Triple Town, which has been gaining a lot of buzz. Sonic the Hedgehog 4: Episode 1 saw an official Android release. Great Little War Game received its first standalone expansion in GLWG: All Out War. Hopefully it can tide the fans over until Rubicon Development finishes their sequel. All of that and more in this week’s top Android games.

RAIDEN-Sky Force Ace (free)

Raiden-Sky Force Ace is a new scrolling shooter in a science fiction setting. The game makes use of gorgeous Super Nintendo style pixel art to create its characters and world, and there is even a rather generic yet appropriate story thrown in the mix. The touch controls could use a little polish, and the game is rather clunky, but it’s a great throwback to the scrolling shooters of the past. Save up and purchase various upgrades to take on the enemy forces all the better in this simple, nostalgia-driven free title.