This page will contain a list of guides for you to apply any of the various elective mods to your disassembly of Sonic 1. All aspects of elective mods within S1Fixed are denoted by their variable name(s), though the guides will serve as a roadmap for applying them directly to a clean disassembly of Sonic 1.

Player Abilities

• Spin Dash
• Super Peel Out
• Air Roll
• Drop Dash
• S3K Shield Abilities
• Super Sonic (Adds a 7th Emerald)

Special Stages

• Dynamic Special Stage Wall Art
• Smooth Special Stages
• Special Stage Index Increases Only If Won
• Special Stages Still Appear With All Emeralds
• HUD in Special Stage
• Sonic 4-Style Special Stage

HUD

• Scrolling HUD
• CD Centiseconds HUD
• Leading Zeroes HUD
• Blinking HUD

Gameplay Tweaks

• Original Roll Jump
• Speed Caps
• Spike Bug
• Rebound Mod
• Faster/Instant Score Tally
• Random Monitors
• Cool Bonus

Prototype Elements

• Prototype Sonic Palette
• Beta Level Order

Misc

• Uncompressed Chunks and Blocks in ROM
• Fade-In SEGA Screen
• Alternative Fade Effects
• GHZ Background Palette Options
• End-of-Level BGM Fade Out
• Objects Not Freezing Upon Death
• CD Camera Panning
• CD Balancing Sprites
• S3K Afterimage Effect
• Dust Effects
• Floating Signposts
• Sonic 2-Style Level Select