Charmy Bee in Sonic 1 is a modification of Sonic the Hedgehog where Sonic is swapped out with Charmy Bee from Knuckles' Chaotix.
Charmy bee cannot jump instead he can only fly, so he must use this ability to put a stop to Dr.Robotnik's plans and robot army, storm the Scrap Brain and collect the chaos emeralds!
Yeth is a ROM hack of Sonic the Hedgehog. The game features an original character by the name of Yeth as he adventures through several new levels (and one familiar one).
Yoshi in Sonic 2 is a ROMhack/mod of Sonic The Hedgehog 2. In this mod, the player controls Yoshi, with his signature moves from the Yoshi's Island series, like ground pounding, egg laying and throwing, enemy eating. Yoshi carries on his back a Baby Sonic and Tails, which will start to cry if Yoshi gets hurt, and the player loses a life if they are taken away.
Tails and Charmy are the flying types with the ability to soar through the air nothing stands in their way, and with Each carrying a legion of friends when super or hyper, Dr. Robotnik's forces don't stand a chance!
Knuckles and Vector are the power types delivering devistating blows to Robotnik's Badnick army combine that with the ability to Glide, climb walls, and Power Dash, these two are the roughest, toughest dudes around.
As if the Teams weren't enough to sway you new powerups make their rounds aswell: Home in on Robotnik's forces with the Homing Sheild, Burn those bots with a fire sheild.
Short-circuit them with an electric sheild, If a watery grave awaits you a bubble sheild is just around the corner.
The Sol Emeralds have also managed to cross dimensions through the Special Zone but not to worry Team Sonic and Chaotix are on the job!
Using both the Power of the Chaos and Sol Emeralds will unlock a very familiar power.... can you collect all 14?
Sonic 2 Dimps Edition is a hack of Sonic the Hedgehog 2 by Spanner. This hack attempts to mimic what Sonic 2 may have been like if it were created by Dimps. This means incorporating many features found in Dimps games such as random speed boosters. This does not include features common in most modern Sonic titles with the exception of a homing attack.
Amy Rose in Sonic the Hedgehog 2 swaps Sonic out for Amy Rose from Sonic CD, equipped with her Sonic Advance moveset.
She will have to Jump whirl and Dash through Westside Island with the help of her newfound friend Tails!
Infiltrate the Death Egg and put a stop to the deadly Space Station using your hammer!
Super Sonic in Sonic 3D is a hack of Sonic 3D: Flickies' Island made by Sik. This hack allows the player to turn into Super Sonic in said game after collecting all seven Chaos Emeralds, mimicking its prequels Sonic 2, Sonic 3 and Sonic & Knuckles. The rules are borrowed from the latter two games, so the player must double jump to transform and also must not have a shield in that moment, besides the basic requirements (having all emeralds and 50 rings).
All of Super Sonic's behaviour is implemented: a custom palette, a transformation pose with a fading palette, invincibility (with stars), speed shoes and a music change upon transformation. Rings drain while transformed as well. Super Sonic can still be killed by getting crushed by some falling platforms, however, so he isn't completely immune to death.
This hack is based off Sonic 3D: No Flickies, and as such it shares the same gameplay rules.
Sonic the Hedgehog 1 @ SAGE 2010 is a specialized ROM hack of the original 1991 game for the Sega Genesis, developed by Cinossu. It was released specifically for the 2010 Sonic Amateur Games Expo (SAGE).
Sally Acorn in Sonic the Hedgehog (aka Sally in Sonic 1) is a fan-made ROM of the game Sonic the Hedgehog for the Sega Mega Drive, with Princess Sally Acorn as a playable character in place of Sonic the Hedgehog.
Sonic 2 XL is a hack of Sonic the Hedgehog 2 for the Sega Mega Drive by Captain Bozo and Ranger. Rings are replaced with onion rings, and Sonic becomes fatter after eating them.
This hack introduces Manic the Hedgehog (Sonic’s brother from the Sonic Underground series) as a playable character with a unique moveset, including the ability to throw drumsticks and climb walls.
A ROM hack of Sonic the Hedgehog in which the main character replaced by Motobug, one of Dr. Robotnik's Badniks. The new protagonist has a much lower speed, unless when using power-ups.
Amy in Sonic 1 is a modification of Sonic 1 that swaps sonic out with Amy Rose from Sonic CD, bringing with her, her move-set from Sonic Advance.
Using Her Piko Piko Hammer she will have to Jump, whirl, and dash through South Island to put a Stop to Robotnik's plans.
Sonic 2 Retro Remix is a large-scale ROM hack of Sonic the Hedgehog 2 for the Sega Mega Drive, created by Thorn and DNXDelta. The goal of the project is to create a 2D Sonic the Hedgehog game that requires exploration to progress, as well as the requisite platforming and sheer speed. A mission system akin to those of the 3D Super Mario games is implemented as the means of progressing from one level to the next. Missions involve earning Chaos Emeralds in scavenger hunts, boss battles, speed runs and score attacks; most require learning each level's ins and outs, instead of just finding the easiest way to the goal.
Sonic Boom is a total modification of Sonic 2, created by snkenjoi and iojnekns, along with a wide array of talented contributors. As of the Seventh Annual Hacking Contest, this collective is referred to as SÆGA.
Playing as the Pringles mascot, your goal is to reach the finish orb and collect as much Pringles on the way as possible in each level. All levels are split into three worlds, which are based on official Pringles flavors: Sour Cream & Onion, Tomato & Basil and Black Pepper.
Sonic The Hedgehog: The Lost Worlds is a hack of Sonic the Hedgehog 2 by ExecByte. This hack features all of the zones that were cut from Sonic 2 during development. Some zones have been ported from the Sonic 2 Simon Wai prototype and then finished up, and some have been created based on magazine pictures and information from interviews with people who worked on Sonic 2.
Sonic 1: WTF LAME is Joke ROM hack of the original Sonic the Hedgehog for the Sega Genesis. While it largely plays like the original game, it is designed as a technical troll that is impossible to beat normally. The hack introduces special "WTF LAME monitors" which, when broken, trigger a high-quality PCM sample of the Benny Hill theme.