FNF Sonic The Funk – Rhythm Rap Battle Mod Featuring Sonic the Hedgehog

FNF Sonic The Funk is a rhythm game mod that drops players into 5 rap battles against iconic characters from the Sonic the Hedgehog universe. Built on the Friday Night Funkin’ engine, the mod layers platformer-style mechanics on top of the usual note-hitting, which is rare for an FNF project.

Stages pull directly from Sonic Adventure 2 and Sonic Generations. Expect familiar backdrops—Green Hill, City Escape, the Space Colony ARK—reimagined for rhythm combat. The presentation feels polished rather than thrown together.

What Makes This FNF Mod Different

Most FNF mods live or die by your sense of rhythm. This one doesn’t. Your score depends on timing, sure, but also on how many rings you’re holding versus your opponent. You jump on enemies mid-song. You dodge traps. You scramble to pick rings back up after getting hit.

It’s FNF with a Sonic platformer bolted onto it—and the two styles mesh better than you’d expect.

FNF Sonic The Funk Songs and Story Mode

The Adventure mode runs through five tracks, each tied to a specific moment from the Sonic games.

Break Down is the tutorial, set in Green Hill Zone. Tails walks Sonic through the basics before things get serious.

Unbound puts you in Boyfriend’s shoes against Sonic himself, racing down the sloped streets of City Escape. Boyfriend borrows Sonic’s Spin Dash and occasionally bounces off his head—a nice touch.

Rock Solid flips the perspective. Now you’re Sonic taking on Knuckles, staged during the Master Emerald scene from Sonic Adventure 2. This track throws in an Osu-style click mechanic mid-battle.

Ultimatum is the Shadow fight. It pulls from the Final Rush and Final Chase missions on the Space Colony ARK, and the stage warps as Shadow flexes his powers. You’ll juggle rhythm, attack timing, and your ring count all at once.

Blueprint closes things out with a Metal Sonic chase through Metropolis zone, referencing the final level of Sonic Generations. Damage only lands when a green light flashes. Miss the window and you’re wasting hits. There are two endings here—Good Future or Bad Future—depending on how much health Metal Sonic has left. Amy Rose’s fate is on the line.

Rings, Ranks, and Homing Attacks

Rings replace the standard health bar. Press Space to jump, then press it again in mid-air to Homing Attack your opponent—each successful hit steals 1 Ring from them. Capsules also pop up throughout each song, dropping 10 Rings when clicked.

Hit 0 Rings and you’re one mistake from a fail screen. Getting Homing Attacked while holding Rings sends them scattering across the stage, and you’ve got a narrow window to mouse-click them back before they’re gone.

Ranking works like you’d expect from a rhythm game. L Rank is the failure bracket. Above 70% accuracy lands you a C, 80% gets a B, and 90% pushes you into A territory. Cross 95% for an S. SS Rank demands 100% accuracy and every Ring collected—no room for error.

Song-Specific Mechanics

Each track introduces something beyond the standard rhythm flow.

The Rock Solid Knuckles fight is the Osu homage. Bumpers appear on screen and you click them in sequence. Miss one and Rings slip away.

Ultimatum has two moments to watch for. Around the 0:58 mark, Shadow pulls a gun—you’ll need to fire off a quick input sequence to dodge the bullet. Right after, he uses the Green Chaos Emerald for Chaos Control, freezing the notes in place while the strumline drifts toward them for a full measure. Weird, disorienting, and genuinely fun.

Blueprint layers the most on top. Bombs drop in and demand jumps. Rings appear in straight lines for easy pickups if you time the jump right. Metal Sonic spends most of the song invincible—he only becomes vulnerable when he turns red and starts smoking. Mistime the Homing Attack and Sonic eats an electric shock for 4 Rings. Starting at 1:31, Metal Sonic locks onto Sonic and attacks; a displayed key prompt shows up and you’ve got to nail the timing.

Then there’s the ending split. Deplete Metal’s health bar by the end of the Past segment and you trigger the Good Future—Sonic wins the race, Amy Rose is saved. Skip the attacks entirely and you land in the Bad Future, where Metal Sonic wags his finger at the screen while Amy cries tied to a pole. The results screen hands you a Stamp based on which ending you got.

Game Controls

• Space – Jump (avoid obstacles)
• Double Space – Jump attack (damage opponent, steal a ring)
• Mouse – Collect rings and click Osu-style targetsfnf, sonic, rhythm, rap, battle, mod, music, platformer, arcade, browser
• Arrow Keys – Hit the rhythm notes

Credits:

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• Artist, composer, coder: Jon SpeedArts
• Composer and ideas: MegaBaz
• Mod original : Download the mod.

As always, remember to have fun!