You need a WonderSwan Color emulator. The best options:
Hunter X Hunter: Maboroshi no Greed Island - FAQ - PlayStation 12 Apr 2003 — You need a WonderSwan Color emulator
to navigate the main title screen, setup configuration, shops, and Nen ability dojos. Real-Time OCR Translators: Instead of searching for an English patch, fans
Sites like PSX Data Center and GameFAQs provide item lists and mission walkthroughs that substitute for an English patch. looking up active fan-translation groups
Instead of searching for an English patch, fans can try the following alternatives:
Maboroshi no Greed Island (Phantom of Greed Island) is a unique turn-based dungeon crawler. Unlike the later Greed Island arc in the anime, this game features an original "Greed Island 2" beta-test storyline where Gon and Killua encounter a new character named Sufika.
If you love old-school dungeon crawlers and want to see your favorite characters in a weird, alternate-universe setting, it is an incredibly charming piece of HxH history! looking up active fan-translation groups