Cellufun is at it again and this time it's with a great game that's similar to the old school Atari games.  Their website says:

Wave after wave of marauding ships intent on your destruction appear in formation above you. Defeat them all only to confront their increasingly difficult boss ships. 10 challenging levels, 3 bosses, and a slew of power-ups await you in this space shooter reminiscent of Space Invaders and Galaga.

I definitely enjoyed Attack of the Zloggs.  If you've ever played Space Invaders you'll love this.