Gains is a large humanoid mech, previously used by the Space Corps, but now controlled by the Bydo. It's a multi-purpose unit, used equally for offensive and defensive means in a variety of situations. Despite their size, Gains units are rather agile, capable of every kind of flight between hovering and interstellar flight, and tend to be very durable. Gains are typically loaded with a modified version of the Standard Wave Cannon, but their modular nature allows for a variety of other weaponry. Since Gains is one of the most popular Bydo encountered, there are many different versions of it.
Two varieties of Gains are encountered in the Catapult Dimension. The first model, a green version, fires large Wave Cannon shots. The second one, a red version, shoots more rapidly, but will eventually be killed by the environment.
Humanoid weapon made for intra-atmosphere use. It has a rapid-fire Condensed Wave Cannon. To adapt to Earth's gravity, stiffness and output were increased, and weight was reduced. The ace pilot, Capt. Matt Gables, used to ride in this vehicle.
Gains resembles a Mobile Suit from the Gundam series, the R-Type: Final discription of this enemy also suggests that Gains where once piloted. Another possible reference to Gundam would be in R-Type III; where two green Gains attack you, and a red one appears, but it is faster then the other two. This could be a reference to the antagonist in the first Mobile Suit Gundam anime; Char Aznable who pilots Red Mobile Suits and is notable for being fast.