Super Robot Wars/Masou Kishin III/Info Dump
The Part Point objective for Stage 26 in the Bagonia Route says:
Part: Defeat Wersdain (ウェルスダイン) with Gido (ギド) (Magic Accumulator)
However, the part will only unlock if you defeat the Wersdain that comes as a reinforcement, piloted by Janna (ジャンナ).
Defeating the initial Wersdain piloted by Codec (コーデック) will do nothing.