Sonic ERaZor is a hack of Sonic the Hedgehog created by Selbi. This hack is unlike many other hacks, featuring a heavy in-game story line, unique challenges, and never seen before gameplay mechanics. These elements are often somehow related to explosions, which is why this hack is sometimes called, "What if Michael Bay directed Sonic 1?"
Sonic 1: South Island Definitive is a hack by RadiantNexus Team, which seeks to reimagine Sonic 1 by rearranging levels. remixing music, adding features from future games, and readding scrapped ideas in new and interesting ways. Major features: 3 acts of reimagined level design, including one act that has yet to be fully reimagined in any other hack. A miniboss. Massive art overhaul all over the place. Music made by ProjectFM and MechaKnuckles. Menus! A custom splash screen. There's been massive engine overhauls as well, including the Sonic 3 level layout format for massive levels, and the Sonic 3 object manager to go alongside this.
Released on Sega Mega Drive/Genesis, by Jdpense.
A ROM hack of Sonic 3 & Knuckles which swaps Sonic for Amy Rose, with a different moveset.
Released on Sega Mega Drive/Genesis, by TomatoWave_0.
A hack which combines Sonic 1 levels, Sonic 2 (final and prototype) levels, Sonic 3 levels, and Sonic and Knuckles levels into one game.
Platform / Action / Science fiction
Metal Sonic Hyperdrive is a modification of Sonic the Hedgehog that stars Metal Sonic as the main character role - more specifically a reprogrammed Metal Sonic. The hack also features other characters besides Metal such as: Sonic,Lone Devil (KAZ),Kirby, and even Somari! Each coming with their own unique abilities: Metal can use the Super Peel-Out, and Maximum Hyperdrive Attacks, Sonic can Spindash in traditional fashion. Somari can spindash, but in a less traditional fasion, Lone Devil can use his Sythe to attack and freefall, and Kirby can inhale enemies, no copy abilities.
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 the Hedgehog (also know as Sonic 4) is an unlicensed game for the SNES by Peruvian scene organization Twin Eagles Group. It is, actually, a hack of Speedy Gonzales: Los Gatos Bandidos. Notable features include Sonic's new ability to kick, and missions to free Mario from cages (upon which the latter exclaims his name).