Sonic 1, except you are constantly being trolled. A funny sonic hack with a lot of trolling going on. Sonic in Troll Island is a Sonic 1 hack, which main focus is to be a very fun and entertaining game for those who will play, with some pretty funny stuff at the levels and with a great soundtrack too!
A ROM hack/mod for Sonic the Hedgehog which changes Sonic for Shadow the Hedgehog. Although a previous mod with the same purpose exists, this one adds new abilities like the Light Dash and removes the Homing Attack.
This is a ROM hack of Sonic the Hedgehog for the Sega Mega Drive, that features Ray the Flying Squirrel, who takes the place of Sonic the Hedgehog. Unlike Fabricechaotix' 2007 version of Ray the Flying Squirrel in Sonic the Hedgehog, which only had SegaSonic the Hedgehog to reference, this one used Sonic Mania Plus as a reference, and also pulled assets from it, such as art.
Hellfire Saga is a full-fledged Sonic the Hedgehog 3 & Knuckles ROM Hack developed by Red Miso Studios, where Sonic goes through levels that are heavily based on classic 80/90s games and with a dark/spooky theme (Castlevania, Ghouls n' Goblins, etc).
Sonic 2: Advanced Edit is a Sonic 2 hack created by rika_chou. Sonic 2: Advanced Edit has seen 4 major releases. The 4th release includes the levels from the 3rd release as bonus content.
A ROM hack/mod for Sonic the Hedgehog which changes Sonic for Rouge the Bat. The new character has new abilities such as the glide and an aerial downward attack.
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).
Platform / Adventure / Action / Fantasy
This is a complete hack of Super Mario World. Don't expect any new graphics here; this game is all about the level design. All the levels and worlds are new, and some of the worlds have themes not present in the original game, such as a water world and an ice world.
Rockman 5: Double Jumper is a hack that features a new skill for Rockman, the Double Jumper (press the jump button on mid-air to perform it, like Forte and Zero). The hack also features: - new level designs - new boss move patterns - new weapons behavior