Ray Mk III
The Ray Mk III (レイMkIII, Ray Mk III) is a Robo from the Custom Robo series.
The Ray Mk III is a Robo in the 'Ray' series that hails from the Custom Robo series. It is a well balanced 'Power Model' from the Shining Fighter line. It first appears in Custom Robo Arena for the Nintendo DS. In Custom Robo Arena, the main character switched his Ray Mk II, which was the main Robo used by the protagonist in Custom Robo V2, to a new model made by his sister and father.
As an Assist Trophy
In Brawl, this small yet hardy fighter leaps upward before firing a volley of lasers from its hand-held blaster or occasionally an explosive charge with its bomb launcher and hovers in place while firing before dashing horizontally around the arena a few times per jump, akin to the series. It is an unlockable Assist Trophy and becomes available after playing 100 brawls.
The trophy lists Ray Mk III as appearing in Custom Robo: Arena, however the game doesn't use a colon in it, instead being Custom Robo Arena.
As a costume
Ray Mk III serves as the basis for the Ray Mk III Helmet and Ray Mk III Outfit for Mii Gunner.
In Adventure Mode: World of Light, Ray Mk II is presumably one of the countless spirits captured by Galeem during his takeover of the universe. Ray Mk II's spirit is located in a Treasure Chest at the military base of The Light Realm.
Ray Mk II's Spirit Battle uses a Mii Gunner puppet fighter wearing the Ray Mk III Helmet and Outfit and is fought on the Pokémon Stadium 2 stage. During the battle, the Mii Gunner starts off with a Rocket Belt, referencing Ray Mk II's jetpack while the Mii Gunner favors special moves, referencing Ray Mk II's custom moveset in Custom Robo V2.
Names in other languages