The CR-YCO10/UL2 is a core part that appeared only in Armored Core: Last Raven.
Description[]
Core part specifically designed to reduce OB energy consumption.
Acquisition[]
Can be obtained by defeating Daemon in the VR Arena.
Users[]
Trivia[]
The part looks identical to the ECL-ONE core part from Armored Core 2 and Armored Core 2: Another Age.