Yu Yu Hakusho (1992)

S3E4 Genkai's Ruse

Kuwabara and his friends finally arrive at the location where Yusuke is imprisoned. However, Kido has one last challenge for the Spirit Detective. Among his companions, one is actually a fake, and Yusuke has mere minutes to figure out who it is! After a tense moment of deliberation, Yusuke makes his choice and strikes!