ANIME BREAKDOWN:
Hunter x Hunter #39
Convene Skill x Register x The Fight Begins

Summary:

With Wing's training, Gon and Killua are able to pass Hisoka's barrier on the 200th floor. Hisoka informs Gon that he'll only fight him after Gon has won a match on this level. Gon is promptly challenged to a match by the top-spinning Gido. Alas, Gon is injured and quickly defeated by Gido's tops.

Video (Fansub):