Hunter x Hunter (2011) - episode 35 - 16 Jun, 2012

Gon, Killua, and Zushi train in Nen and learn of the Nen aura types in preparation for Gon's battle. Wing reveals at the end of the training that Gon has officially passed the second Hunter exam, and gives them an update on their friends' progress in this secret Nen exam. The fight between Gon and Hisoka begins, with Hisoka dealing the first punch. Gon shatters a floor tile to create a distraction and manages to successfully land a punch on Hisoka in the face—the bar that Hisoka set for Gon being a worthy opponent. (Source: Wikipedia) Heavens Arena arc: (9/10)