The Core Robot is a machine built for combat by the EDF (Earth Defence Force) from the OVA Dual! Parallel Trouble Adventure.
There are three multicolored bipedal machines reverse engineered from Zinv, made by Doctor Ken Sanada for the EDF. Because they are man-made, the Core Robots are inferior to the originals in every way.
The Core Robots are used by the Earth Defense Force, the robots and there pilots are:
- Yayoi Schwael (replaced by Kazuki Yotsuga, and later by Mitsuki Rara) pilots the white Unit 1 (nicknamed "Hartzenen" by Kazuki).
- Mitsuki Sanada pilots the red Unit 2.
- The Core Robots share many design qualities to the robots from the Evangelion series.
- Each of the pilots is almost identical in apperance and personality to the three main Evangelion series pilots.