model_f_(mega_man)
Biometal Model F is the Mega Man transformation for Atlas (mega man) from Mega Man ZX Advent. It's design takes inspiration from Fighting Fefnir (mega man) from the Mega_Man_Zero series.
Vent (mega man) or Aile (mega man zx) from Mega Man ZX may also use this form, combined with Model X to transform into Model FX (mega man).