A Tower That Prices Violence By the Floor
Gon and Killua's First Real Job
How the Money Works
Fighters climb Heavens Arena floor by floor, and the prize money scales with height, low floors pay pocket change, the upper reaches pay enough to fund an entire life. Gon and Killua start at the bottom specifically because it's the fastest path to real money either of them has access to as kids with no connections, and the show treats the climb itself as a training montage disguised as a job.
The Floor 200 Line
Something changes once fighters cross floor 200: the competition stops being amateur hour and starts being Nen users, trained professionals who've been doing this far longer than two twelve-year-olds. This is the wall that actually forces Gon and Killua to seek out real instruction instead of coasting on raw talent, and it's exactly where Wing finds them.
Kastro and the Cost of a Bad Ability Choice
Wing uses a floor-200 fighter named Kastro as a teaching example: enormous natural Nen talent, wasted on a double-creation ability that doesn't remotely suit his instincts. It's a small moment, but it's the show quietly setting up the entire logic behind the Six Nen Types page, talent without self-knowledge just means a more elaborate way to lose.
Why Hisoka Is Here At All
Hisoka doesn't need the prize money and everyone around him knows it. He's in the tower because it puts him in reliable proximity to strong opponents, and because floor 200 is exactly the altitude where Gon might eventually become the fight he actually wants. Heavens Arena isn't his workplace, it's his waiting room.