Lightmare Studio now offers a playable demo for Beware Planet Earth, as well as a new patch to update their just-released tower defense game to version 1.0.1. Both downloads are mirrored on Gamer's Hell. Here's the launch trailer, and here's word on the game's Mars Attacks sensibilities: "Heed the warning from the red planet, Earthlings! The Martians are about to strike our beloved planet to take our single most valuable resource: cows! Protect Barney's "ladies" in this colorful and whimsical tower defense game!"