From Sonic Retro

(Redirected from SLEEP)
This page describes an obsolete hacking tool that should not be used for new hacks/projects or with new disassemblies/tools.
This page (and associated files) is being kept for historical purposes only, as it documents and archives the history of the Sonic scene.
SLEEP - Sonic Level Editor.png
Category: Level editor
Version: 1.05
System: Microsoft Windows
Supported Games: Sonic 2, Sonic 2 Beta
Credits: Tristan Penman

The Sonic Level Editor (SLEEP) is a hacking program created by Tristan Penman that can edit levels in Sonic 2 savestates and the Sonic 2 Beta ROM. It requires special tilesets to work.


Download.svg Download S.L.E.E.P.
File: SLEEP v1.05.7z (43 kB) (info)
Current version: 1.05

Prior Versions


Sonic 2 Final

Sonic 2 Beta