There is a reason why I included this game in Techland’s 50 Best iPhone Apps. Created by YoYo Games, the same people who created Karoshi, this side-scroller lets you control a strange creature whose main goal in life is to be fed to blob-like monsters. The most addictive part of the game is the 360-degree gameplay. Low gravity means you float from platform to platform, some of which rotate while others are covered with spikes, providing an addictive and oddly intuitive experience for more than 80 levels.
Links: They Need to Be Fed (iOS), They Need to Be Fed (Android)
MORE: Rovio Announces Angry Birds Space Release for March 22