Purple Zone Cave

This level is found in E Level. Assuming you entered from the left side:

To the left, is 3 electric Green Cubes. Bypass them (various ways, red gun may be easiest) to access 2 Silver Gems and 1 Green Gem into the Save Room collector.

To the right, there are various bombs, a save room collector, and a couple blue cubes buried in the ground. A door near the top of the level will skip to the end of the level below*. To the upper right there is a box with a 9 Coin in it. Watch out for the electric Cyan Gunman.

The upper right path leads past some bombs, 2 brick walls (blow up with bombs), 2 blue cubes and a green gem. This leads to a tall door which goes back to the far right side of E Level.

The lower path leads to small door which drops you off down below. A box containing 7 items (Blue Cube, Blue Bird, electric Cyan Gunman, Green Cube, Red Gunman, 2-second activated Bomb, 5-second Bomb). Blow up the wall to get access to 1 Silver Gem and 1 Green Gem and the door back to above*.

There is also a secret in this area, if you bring a secret item.

Also on the lower path, a skull block and skull collector which requires some items to remove it. This leads to J Key Level.