All must die is a platformer with progressive difficulty. This game is a bit counter intuitive, the main idea of the game is to kill all the characters on the screen using team work between those characters.
The levels are constructed so that there is more than one ways to finish a level but still provide a balanced challenging experience. Each stage presents a new challenge. There are several objects you can use to solve puzzles, and in later levels the game will even break its own rules to surprise you, in more than 50 clever levels.