I notice you're asking about a "Donkey Kong Country 4" ROM for the SNES — just to clarify, no official Donkey Kong Country 4 was ever released for the Super Nintendo. The original trilogy (DKC 1, 2, and 3) came out on SNES, and later titles like Donkey Kong Country Returns and Tropical Freeze appeared on Wii, Wii U, and Switch.

The official Donkey Kong Country trilogy for the Super Nintendo (SNES) famously ended with its third installment in 1996. If you are searching for a Donkey Kong Country 4 SNES ROM, you are likely looking for one of several community-created fan projects, unofficial "bootleg" ports, or lost pitches rather than an official Nintendo release. The "Donkey Kong Country 4" Bootleg (NES/Famicom)

Developed by the Hummer Team and released by J.Y. Company in 1997. It is a demake of the first Donkey Kong Country

Conclusion: The Hunt for DKC 4 Ends Here

The Donkey Kong Country 4 SNES ROM is a legend—a gaming Bigfoot. It doesn’t exist as an official Nintendo product, and it never will. But that hasn’t stopped the community from creating incredible, playable tributes that honor the spirit of Rareware’s trilogy.

There is no official Donkey Kong Country 4 for the SNES. The original SNES trilogy concluded with Donkey Kong Country 3: Dixie Kong's Double Trouble! in 1996. However, the title "Donkey Kong Country 4" exists in the gaming community as either a pirate bootleg or a fan-made project. 1. The 8-Bit Bootleg (Most Common "DKC4")

: While it mimics the SNES aesthetic, it primarily runs on PC as a standalone executable, though some enthusiasts have attempted to adapt its assets for ROM hacks. 2. Donkey Kong Country 4 (Famicom Bootleg)

Scope: This project aims to act as a direct sequel to the original SNES trilogy.

• Donkey Kong Country: The Legend of the Lost Egg – A complete campaign with 40+ new levels, new enemies, and remixed music. Often cited as the best "DKC 4" fan project.
• Donkey Kong Country: Kreeping Klashes – A difficulty-focused hack with smart level design.
• Donkey Kong Country: Return to Krocodile Isle – Expands on DKC 2’s setting with original bosses.
• Donkey Kong Country 4: K. Rool’s Revenge (by Mero) – Perhaps the most famous hack labeled as “DKC 4.” It replaces Dixie with Lanky Kong and features 45 challenging levels.

If you search for DKC 4 out of nostalgia, you’re better off replaying the original three games on your SNES or Switch (via Nintendo Switch Online). If you search for it out of curiosity, dive into the world of ROM hacks—but do so safely and legally.