Sonic the Hedgehog 2 (2013)/Changes from the Genesis Version

To do: this page only just barely started, there are still more differences to cover

Gameplay Differences

• The game now runs in widescreen. As a result, some of the boss battles and arenas are altered, such as in Aquatic Ruin Zone and Death Egg Zone (Mecha Sonic only).

Graphical Differences

• Smooth sprite rotation has been implemented for certain sprites that rotated in the original version. (e.g. the drills of Mystic Cave Zone's boss and the cogs in Metropolis Zone).
• Many other objects have also had their animations smoothed, such as the Rexon badnik.

Sega Screen

In the original Genesis version, Sonic's in-game sprite is used and enlarged accordingly. The 2013 version uses new upscaled Sonic sprites for the Sega screen.

Genesis	2013 version

Audio Differences

• All of the music uses cleaner instrument samples than the original version.
• The only non-level music to have a sped-up version is the invincibility theme. One effect of this is that encountering a boss with Speed Shoes will only play the normal boss theme, not the sped-up version.
• Hidden Palace Zone uses the 2-player Mystic Cave music assigned to it in various prototypes of the original game, with Song #10 (the music assigned to Hidden Palace in the original game's final release) instead used for Proto Palace Zone.
• The Wing Fortress Zone boss now has sounds for charging up and firing its laser, taken straight from Sonic 3 & Knuckles.
• Death Egg Zone also has new sounds for closing the Death Egg Robot's head and explosion sounds when escaping, also taken from Sonic 3 & Knuckles.

Level Differences

To do: Mystic Cave also has brand-new Knuckles-only paths in many places.

Chemical Plant Zone

Act 1

• There are two new secret monitors near the start of Act 1:

• The two monitors that were introduced in Knuckles in Sonic 2 are present:

• There's a whole new path exclusive to Knuckles, as well as a Knuckles-exclusive checkpoint area:

Act 2

• The entire second half is filled with new Knuckles-exclusive paths.

Hill Top Zone

Act 1

• There is now a brand-new Knuckles-only section near the beginning:

• There is also a new Knuckles-only section near the entrance to the first underground section:

Mystic Cave Zone

Act 2

• The infamous spike pit has all of its spikes removed, though jumping down there isn't treated like a bottomless pit - it instead sends you to Hidden Palace Zone!

Wing Fortress Zone

• The lone diagonal conveyor belt now actually functions as a conveyor belt, unlike the original where it served no actual purpose.
• Speed boosters were tweaked and are able to launch the player across the large gap far in the level.