Over the last little while, Pokemon Go players have been reporting sightings of "Ditto", a type of Pokemon that transforms into Meltan. Meltan is considered a "Hex Nut Pokemon" of the "Steel" type, a brand new Pokemon species. "Pokemon Go is somehow key to meeting this curious new Pokemon in Pokemon: Let's Go" and research is being conducted all while Meltan is becoming rarer in the mobile collecting game.
Most of Meltan’s body is made from liquid metal, and its shape is very fluid. It can use its liquid arms and legs to corrode metal and absorb it into its own body.
Meltan generates electricity using the metal it absorbs from outside sources. It uses this electricity as an energy source and also as an attack that can be fired from its eye.
Clearly a curious Pokémon, Meltan is very expressive and shows an interest in all kinds of things.
Check out the Pokemon: Let's Go / Pokemon Go site to learn more.