Space Invaders Infinity Gene is easily one of my favorite games of the year. It's an amazingly wonderful re-imagining of the Space Invaders world, one of the oldest video games around.
Space Invaders was originally released in 1978 and I can't count the number of quarters I dumped into the machine down at the neighborhood pizza shop. So while my love for SIIG might be a little tainted with nostalgia, it still stands as a fantastic game. The method of play in this game is basically the same as the original. You are shooting at advancing aliens -- the twist here is that the game evolves from the original Space Invaders to a progressively different and more interesting game as you score more points and progress through the levels by filling the evolution gauge. With each filling of the gauge, the game evolves into a new one bringing increasing weapons and level changes.
This update brings, much like the Fieldrunners update, integration with OpenFeint. This allows you to compare your score with your OpenFeint friends and also includes new achievements to work toward. While the first version of this game was amazing, it left me wanting more. This new update adds new levels to work towards as the evolution gauge fills.
Here's a video demo of the game from Taito.
One of the interesting feature of this game which I all but ignored in the first release is the Music Stage. In this stage you select a song from your device music library and play a level that's specifically tailored to that song. Each song generates a different level. With this update you can rate and share your favorite Music Stage levels with friends.