Gamma

Normal sudoku rules apply.

Along the slow thermos the digits must not decrease from the bulb to the tip.

Digits cannot repeat in cages.

One of the digits separated by an eye of the Gamma Metroid (black dot) must be the double of the other. Digits separated by a electric arc (white dot) must be consecutive. Not all dots are given.

"This stage of Metroid can now transfer negative charges from its nervous system into the horns, releasing electric arcs capable of disrupting weapon fire. The membrane containing its nucleus remains vulnerable, but the Gamma Metroid's exoskeleton has expanded for additional protection. Although its legs have reached their maximum length, they are unsuitable for locomotion. Instead, they can serve to capture prey and drain their energy."