It was made directly in 2D, no 3D models.
About the project, I only worked in some assets, robots, paintjobs and tiles as freelance, but they are still working on it, looks awesome!
Out of curiousity: Is this made from scratch, or created with help of a 3d model?
This is making me all nostalgic for some old-school mech games I used to play! And now I gotta go watch Robot Jox...
The game footage looks amazing! Looking forward to see the finished product. 
Cool!