Meridian's Alive 4-Ever [App Store] is a dual stick shooter that was released late last year which easily stood out from the swarm of similar games with fun gameplay, great graphics, and light RPG elements that allowed you to upgrade your characters and weaponry. We really liked the game in our review and eventually ended up giving it 4.5 stars for the month.
Currently in the beta testing phase, Alive 4-Ever RETURNS seems to take the foundations from the original game, and adds a new graphics engine capable of weather and camera effects, and even more of the RPG elements we liked in Alive 4-Ever. Also included are new weapons, zombies, and game modes as well as local WiFi co-op mode.
There are additional gameplay videos as well as information on how to apply to be a beta tester in the thread on our forums. As mentioned before, we really liked the first Alive 4-Ever at the time and are hoping for great things from the sequel. Meridian has made no mention of level design/architecture in the new version, as that was one aspect of the original we thought there could be improvement in the original.