Hi all! We've added 3 new challenges to the Challenge Mode. If you've already completed the Story Mode, all 3 of the new challenges will be automatically unlocked upon booting up the game.
Here are the 3 new challenges:

• Jellyfish Battle
• Utter Chaos
• Mission Impossible (huge thanks to Beatbox for the contribution)

Hi all! We've added 3 new challenges to the Challenge Mode. If you've already completed the Story Mode, all 3 of the new challenges will be automatically unlocked upon booting up the game.
Here are the 3 new challenges:

• Jellyfish Battle
• Utter Chaos
• Mission Impossible (huge thanks to Beatbox for the contribution)

Features

• Defend both the ground and ceiling! No spot is safe from alien scum!
  
• Shoot up hordes of aliens with your trusty blaster, and when that isn't enough, build turrets and shoot some more!
  
• Experience crazy fast navigation between arenas via gravity flipping and teleporters as you defend multiple arenas simultaneously.
  
• Play through the Story Mode filled with quirky characters over the course of 2 major story arcs.
  
• Enjoy the even faster-paced Endless Mode and compete for high-score with friends.
  
• Conquer the Challenge Mode with demanding set-pieces only fit for the most hardcore.
  
• Rescue scientists and unlock weapon upgrades.

• OS: Ubuntu 12.04 LTS (64-bit)Storage: 200 MB available space
• Storage: 200 MB available space