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Nutty Fluffies Rollercoaster: Yeet-Masta/Nutty-Fluffies-Rollercoaster-Decomp

A GitHub project by developer yeet-masta, Nutty-Fluffies-Rollercoaster-Decomp, uses ILSpy plus Claude Opus 5.5 to clean up decompiled code from the game Nutty Fluffies Rollercoaster, renaming roughly 600 local variables, restructuring search loops, and converting UnityScript-style single-exit methods into direct returns while keeping compiled IL byte-for-byte identical to the original assembly. The author reports that most edits preserve IL parity, though new foreach loops introduce minor differences in enumeration machinery, and the work remains ongoing to improve readability and maintainability.

by read1 min views1 publishedOct 29, 2026
Nutty Fluffies Rollercoaster: Yeet-Masta/Nutty-Fluffies-Rollercoaster-Decomp
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Evidence at a glance #

source evidence…

What was done #

This repository contains a decompilation of Nutty Fluffies Rollercoaster. The project uses ILSpy and Claude Opus 5.5 to refine decompiled code, improving readability by renaming locals, restructuring loops, and simplifying control flow while maintaining byte-for-byte IL parity.

The Nutty-Fluffies-Rollercoaster-Decomp project focuses on refining the output of ILSpy for the game's assembly. The author reports that the project utilizes Claude Opus 5.5 to perform extensive code cleanup, including renaming approximately 600 local variables to descriptive names based on usage, restructuring search loops, and converting UnityScript-style single-exit methods into direct returns. The README documents that these changes are performed on the semantic model to ensure that the resulting compiled Intermediate Language (IL) remains byte-for-byte identical to the original assembly. Specific improvements include replacing while(true) search loops with foreach or for loops where possible, inlining single-use constants, and removing redundant casts. The author notes that while most changes preserve IL parity, some modifications—such as the introduction of new foreach loops—result in minor differences in the enumeration machinery compared to the original code. The project remains an ongoing effort to improve the maintainability and readability of the decompiled source.

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