Extract the archive anywhere, then use any IPS-compatible patching tool to apply the patch file "halloweenfinal108.ips" to an original EarthBound ROM (regular 3MB ROM, NOT a pre-expanded one!)

Tools you can use for this include: Floating IPS, Lunar IPS (Toby's original recommendation), EarthBound Patcher, Coilsnake, Rompatcher.js.

The Halloween Hack (patch)

devek1

6lp4vpzw

EarthBound: The Halloween Hack

Super Nintendo

octopuscal

USA / NTSC

How do I download the Halloween Hack?

can someone make a glichless category

EBHQHH?

Any% can be segmented?

Important rule change

ukoid

IronInvoker47

stoic_rose

Yoshistar184

S0M3-N3RD