Mega Greninja has officially arrived in Pokémon GO as part of Pokémon GO Fest 2026: Mega Finale, marking the latest Mega Evolution to join Niantic’s mobile game. The Water- and Dark-type Pokémon is known for its speed and signature giant shuriken, which it can spin at high velocity before using it to surprise opponents from an unexpected position. The debut gives Pokémon GO players another powerful Mega Evolution to add to their collections as the GO Fest 2026 celebration reaches its Mega Finale.
Source: Official Pokémon GO blog and Pokemon.com
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