A swarm of bloodthirsty insects has emerged from deep underground, threatening the survival of the human race. As Earth's most skilled exterminator, you must rise to the occasion and protect mankind! Show these bugs what separates humans from insects with an array of unique weapons and lay waste to the infestation. 

Game Features:
9 INFESTED LEVELS
Devise strategies, and use quick reactions to complete a set of challenging levels, with many more to come in future updates.
WEAPONS OF BUG DESTRUCTION
Slow the bugs' advance with ice, spread poison among their ranks, or just blow them up with a variety of weapons.
DIFFERENT GAME MODES
The fun doesn't end with the story mode! Top your scores on each level, or play as a ball and crush the bugs.
SHOW OFF YOUR SKILLS
Unlock achievements as you exterminate the pests. 

Source: http://www.teem-soft.com/iphone/BugAttack/index.html