I created a score that uses a march left hand like typical ragtime (but also has the original jazz walking bass line written on a third staff). Download and print in PDF or MIDI free sheet music for Sonic The Hedgehog 2 - Casino Night Zone by Misc Computer Games arranged by Sveciaost for Piano (Solo).

This is a sub-page of Proto:Sonic the Hedgehog 2 (Genesis).

This prototype is documented on Hidden Palace.

The September 14, 1992 prototype of Sonic the Hedgehog 2 is a later build, dated 12 days before the final build. The build seems to have been created when the last features of the game were being added, with the EPROM calling the build a 'Pre-Beta'. It was released on November 9, 2019 as a part of Hidden Palace's Sonic Month.

Interestingly, the differences shown here are consistent with the Gamemaster Preview, suggesting they're the same build. As such, this prototype is sometimes known as the Gamesmaster prototype. Additionally, this is is the first build in which (nearly) all levels are completable.

Attract Mode/Level Select

This is the first known title screen to have the menu present, while everything else is identical to earlier builds. This title screen is famous for appearing in non-Japanese manuals.

• Demos still use their Nick Arcade inputs, which remains the same for all prototypes.
• Demos will load the title card of the stage it is playing the demo of, causing the font to glitch out.
• The Level Select still uses the Sonic 1 setup. Hidden Palace is no longer able to be selected, with Wood and Genocide City being absent alongside the second Act of Death Egg.

General Differences

• Spikes will still damage Sonic/Tails while they're in the brief invulnerability state after being hurt, just like in Sonic 1.
• Super Sonic is close to completion, with all of his abilities being present. However, the ring drain still has not been implemented. The unused monitor from the Simon Wai build is still able to placed in Debug Mode, this time giving Super Sonic all of his abilities instead of just the palette.
• Tails AI has been worked on and is now similar to the final game's.
• Debug's rules now match the final game, although Tails can still automatically be brought to Sonic's location by entering and exiting.
• The unlimited time limit from previous builds is now disabled.

Graphical Differences

• Checkpoints and invincibility still use their old art.
• Crawl uses an updated version of its old art, now having more shading and better colors. Crawl is still stationary as well.

Sound Differences

Casino Night Zone 2p Ost

• Starting with this build, the background music is almost identical to the final version. The only exception is the credits theme, which is slightly different.
• While all sound effects have been added, most of them are not used yet.

This page contains information about the Midi file 'Sonic_2_-_Casino_Night_Zone.mid'. Please note that neither the original file nor the mp3 file resulting from the conversion are available for download from this server. The information provided on this page has been automatically extracted from the Midi file Sonic_2_-_Casino_Night_Zone.mid during the conversion process and it is provded for educational purposes. You might be also interested in a 3D Visualization of this midi file. If for any reason you believe the content shown here is not appropriate, you can request the removal of this page.

Sonic 2 Casino Night Zone Midi

The table above provides detailed information about the Sonic_2_-_Casino_Night_Zone.mid file. The waveform image is automatically generated after the midi file has been converted by analyzing the resulting mp3 file. The tonality information is an approximation and is inferred by analyzing the relative frequency of each of the 12 musical notes being played in the file.

Sonic_2_-_Casino_Night_Zone.mid Musical Notes Distribution

Given a piece of music, it is interesting to count how many times each of the individual twelve musical notes is played, and understand their relative weight, or importance, in the piece. The hystogmam below is the result of such an analysis perfoemed on Sonic_2_-_Casino_Night_Zone.mid-

Casino Night Zone 2 Player

Sonic_2_-_Casino_Night_Zone.mid Midi Tracks

A total of 8 Midi tracks were detected in Sonic_2_-_Casino_Night_Zone.mid midi; each track has a name and contains a sequence of midi events. Here is a summary of the detected tracks in the file:

Casino Night Zone 2 Player Remix

Casino Night Zone 2-player Music