Emoticon Defense - an innovative TD game where your aim is to destroy all the aliens trying to get pass through the track. The game at times get pretty fast and hard to handle. Click and select a map and then choose difficulty level. Built towers and upgrade them. Click on the smiley face to buy it and place it anywhere around the track. Each smiley face will cost you 100 points. Click on next wave to start it immediately or wait for it to come.