Sonic 1 and 2

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Sonic 1 and 2

Version: first release
Last release: 2010/08/30
System: Sega Mega Drive/Genesis
Original game: Sonic the Hedgehog 2 (16-bit)
Credits: ColinC10

Sonic 1 and 2 is a hack of Sonic the Hedgehog 2 for the Sega Genesis by ColinC10, submitted as his entry for the 2010 Sonic the Hedgehog Hacking Contest. In addition to all Zones usually featured in Sonic the Hedgehog 2, this hack first features all Zones from Sonic the Hedgehog (16-bit), which have been ported, resulting in a continuous game experience from Green Hill Zone to Death Egg Zone. Both games' different kinds of Special Stages are available in all regular Acts, and they are accessed through their usual method (Giant Rings for Sonic 1's, star post checkpoints for Sonic 2's). The player must clear all Special Stages from each game, thus collecting 13 (6+7) Chaos Emeralds, in order to obtain Super Sonic.

Features

The zone lineup.

“	Now that's what I call a level select screen.	„
— ColinC10

A full game of Sonic 1 and 2 starts in Green Hill Zone and ends as Sonic destroys and escapes from Death Egg Zone.
The Sonic 1 Special Stages are available through end-of-level Giant Rings. These now appear in Sonic 2 levels if the player did not collect all S1 Chaos Emeralds via rings within that game's Zones.
The player needs all six Sonic 1 emeralds and all seven Sonic 2 emeralds to become Super Sonic.
Progress is automatically saved to SRAM. It is possible to enable/disable this, or start a new game, from the options menu.
It is possible to return to the title screen by pausing the game and pressing
The Level Select screen can be accessed by holding at the title screen
In Sonic 1, Final Zone has been renamed to a second 3rd act of Scrap Brain (even though it is listed as Act 4 in Level Select) as it is obviously no longer the final zone. A normal act ending has been added to Final Zone just as if was any other zone. No ending is shown for Sonic 1.
Arena Mode: Attempt to increase your rank by completing time attack challenges. Higher ranks mean harder levels and shorter time limits.

If both Sonic and Tails are on screen, and there are a large number of objects active, the framerate can drop somewhat.
ColinC10 had to implement a lot of trickery to circumvent palette limitations, so some slight differences from the original games may be noticeable.

File: Sonic_1_and_2.zip (994 kB) (info)
Current version: first release