Pupa Stag
Pupa Stag is a KWG-model Medarot whose sole appearance is in Medarot Navi.
Build and Role
Unlike every other entry in the KWG series, Pupa Stag doesn't much resemble a stag beetle or a Medabot at all; rather, its Head part is a glowing green bundle of energy. Each Arm appears to be a beetle larva and its Legs are simply more energy. Its attacks are almost identical to those of others in the KWG series - Conceal head, Sword arm and Hammer arm - but are fairly weak compared to Mach Massive or Dorcus.
Things change greatly when Power Change enters the picture. Energy becomes matter and weak becomes strong as a miniature Sonic Stag is born. Its Conceal is replaced with Booster, passively raising its attack strength post-movement, and its Sword and Hammer are given even greater strength.
The requirements for Medachange are their weakness - strip them of a part before they can grow into a serious threat.
Appearances
Pupa Stags, along with their Pupa Beetle buddies, appear in great numbers in the game's final chapter alongside the five Fossil Medarots: Mono-Cruziana, Di-Tyranno, Tri-Ptera, Quar-Brachio and Zero-Suicide. They also share some of the fossils' aesthetic, particularly the striping on their arm weapons.