Ruby Passage

The Ruby Passage is the third of six passages in the Game Boy Advance game Wario Land 4. It is set in the Golden Pyramid, a large, labyrinth of a pyramid that Wario must make his way through to defeat the Golden Diva and rescue Princess Shokora. In the Ruby Passage, there are four stages that each contain a mechanical and machinery theme, featuring robot-like enemies, such as Togerobo. The boss of the passage is known as Cuckoo Condor, a ghost-like bird creature who takes the appearance of a large cuckoo clock. The Jewel Pieces in this passage appear as a Ruby, and the CDs are a red color. Other passages include the Entry Passage, Emerald Passage, Topaz Passage, Sapphire Passage and the Golden Pyramid.

Levels
The following table displays the five levels found in the Ruby Passage, with their name, icon and description.

CDs found
There are four CDs hidden in the Ruby Passage, one in each level. Once collected, the track can be played in the Sound Room.