Yaku is a character from Mech Mice Genesis Strike and may not appear in the game.
Yaku talked too much much for a mouse.

Yaku is a large and muscular farmer who lives in the tribe of Liwa in Mech Mice Genesis Strike. He is the first character mentioned after the prologue. He is known to be a large blabbermouth and is very annoying towards others. Yaku had a cousin named crazy Ed who got lost in a fog and ended up sleeping in a log with a rabid squirrel. No one knows for sure what happened to him, but it was believed he threw himself off of a cliff trying to fly. The last sign of Yaku ever seen was his spear abandoned in the mist. His partner, Gibb, was also captured by an unknown animal or being with a pair of devilish red eyes. It is strongly hinted that Bugs were stalking them.

Towards the end of Genesis Strike, Yaku had been modified by the Dark Union with a robotic arm. He then used it to punch out the Hive's door and help lead the kidnapped Liwan bucks to safety.

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