Cat Zone Secret

The Cat Zone Secret area is found on the far left of P Level. The doorway is hidden until you use an Orb near it. Various scientists watch you as you complete this level.

Far left: A Save Room collector, Health Gun and infected Blue Block. The scientist above will push another infected block into the next area, which you can cure with the Health Gun.

There are a bunch of Blue Cubes and Red Cubes, and a Blue Bird. Watch out for the Red Drone on the right side, which requires a gun or bomb to defeat. Grab the Blue Bird and fly up to the next area.

A Purple Laser is blocking the way. It can be disabled with by pushing the button below. Use the Health Gun to disinfect the infected blocks to get an Ice Box (slide across to press the button) and a Blue Cube which you can use to double jump out of the pit.

Pick up the Remote for use later. There is a vertical area with a lot of Electric Blue Cubes. Probably the easiest way to bypass the Electric Blue Cubes is to infect them, using the infected cubes in the top right of the column. A Heart is available half way down if you need to heal.

At the bottom of the column is a Brick wall and a Remote Bomb. If you brought the Remote from above, you can detonate it to get to the next area (or bring a gun/bomb that can explode brick walls). The next room contains a lot of infected blocks. An NPC with a Health Gun may pop up and will start curing some items, causing chaos.

Another Brick wall to the right holds the next area, containing a Super Gun, and above you: 4 Warp Blocks, Super Gun, Triple Box containing {Super Gun, Green Gun, Skeleton Key}, Rainbow Gem, Black Gem, etc.