Eraser Plains
Eraser Plains is the first level of Picture City, the fourth world of Rayman. It consists of 4 parts the first time, and only 3 after that, because Rayman battles Space Mama in the last one.

Part 1
Rayman must jump across giant pencils that float up and down above an ocean of ink. As he gets to the last part of the phase, sharp drawing pins wait above the pencils, so Rayman must be quick across the pencils. This phase introduces the yin-yangs, which are used similarly to the plums.
Part 2
In this phase, Rayman has to shrink a couple of times to access certain areas. He must use his running ability to pass through the waves of giant pencils without harm. The space pirates also appear for the first time.
Part 3
This phase is basically similar to the last phase. Note: this exact map has been omitted in the Atari Jaguar version.
Part 3 (Jaguar)
In the Atari Jaguar version, this map is completely different. It starts with a series of flying rings, the first few being blocked with spiky yin-yangs, while in the middle of those is a box of pins topped with a cage to break. Near the end of this level, there's a chequered eraser with a a series of sparkles in certain squares - this indicates the safest way to cross several boxes of pins, which in turn are represented by pink squares. When Rayman walks on the right ones, he will be able to cross them unhurt, but if he gets them wrong, he will die instantly.
Part 4
Rayman has to fight Space Mama for the first time, after defeating two pirates.