Secret Agent Clank

You need to find all the alien codes scattered throught the level (there's at least 2 per level) you can't find them until you get the sunglasses in challenge mode (beat the game) to access the treehouse. Check the Alien code guide for there locations

The calice of power is in the treehouse but you also need the 3 keycards found in the game.

The locations are.

Red: Under a police car in the Asian level as Clank
Blue: in the gadgebot level in the mines. go backwards on a certain lift (the 2nd one I think)
Yellow: In the Captain Qwark level with the Space Alines and Space Nuns. Before freeing the last Space Nuns head back and jump off the edge trying to land on a previous platform instead you soar in the air and grab the keycard