Welcome to this guide, in which you can find all free Robot enrichments (items) for Portal 2 and process how to obtain them. Base list of free Portal 2 items:

• WCC Flag
  
• Bionic Beanie
  
• Team Fortress 2 hats
  
• Snorkel (limited time - no longer available)

The WCC Flag is a jiggleboned item that attaches to Atlas and P-body's antenna. It bears a design similar to the WCC Skins. This item is awarded after you complete a successful High Five Gesture. (High Five achievement)

The Bionic Beanie is a headwear item for the Atlas and P-body. It appears as a grey beanie with pink stripes and a minature Companion Cube on top of it. This hat is awarded for completing the single player campaign in Portal 2. (Lunacy achivement)

The co-operative mode characters, Atlas and P-body, can wear a number of hats that the player owns in Team Fortress 2. List of available TF2 hats:

• Mann Co. Cap
  
• Prince Tavish's Crown
  
• Pyro's Beanie
  
• Fancy Fedora
  
• Master's Yellow Belt
  
• Tyrant's Helm
  
• Aperture Labs Hard Hat

These Team Fortress 2 hats are currently glitched and there is a high chance that the conversion of items will not work.
The Master's Yellow Belt is a headwear item just for P-body. All other headwears are usable to both of them

Snorkel is blue and orange diving masks for Atlas and P-Body. Atlas's is more of a square than P-body's, while P-body's is an oval. They could be earned by participating in the Steam Summer Camp sale between June 30th and July 10th, 2011 and cost 3 tickets at the Prize Booth.

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