If you like tower defense games, you should definitely try this one. Although it is not the most original ever game created, it takes the best from TD games like Plants vs. Zombies, and combines it with fast-paced action to create something new. It includes lots of upgrades, power ups like machine guns and rocket launchers, and varied skins for your caterpillars which you can unlock via playing the game.
It doesn't make too much effort in the campaign mode, there's not even a determined story, just caterpillars fighting each others, but that doesn't make the game less funny; sometimes it gets repetitive, the different levels of each scenario don't change much from each other, but at the end of each scenario, you get to fight one of the hilarious bosses who are pretty challenging. Upon completing the campaign you unlock an endless mode, in which you can play without restrictions.
This game has a friendly user interface, allowing everyone to play it; also the learning curve is easy, but the game gets hard to master once you progress.
+Lots of upgrades and power-ups
+Easy to learn and hard to master
+Awesome last boss
-Levels get repetitive
79/100 Very good