In front of Arthur's eyes, the entire purple energy finally got control over the mecha. The mecha's body started to float in midair while being modified by the effect of the special energy.
The first thing to change was the outer surface of the mecha itself. It started to elongate and dent at places while forming spikes and concave shapes. The mecha seemed to change its outer appearance in a strange way.
But Arthur was sure these changes weren't just limited to the outer surface of the mecha. Yet he couldn't tell what was changing in the core until things settled down.
The mecha started to grow in size, while a layer of purple metal appeared to cover its surface. Two wings were formed just like what happened with Arthur plus a strong looking long horn that came out from the head of it.
"Boom!"
The changes took roughly half an hour before it finally stopped. A long purple and black cape appeared on the back of the mecha while its size was doubled.
