Sonic's Bonus Game is a web browser game made available on the Sega website in 1997. It is based on the Special Stages from the Sega Genesis version of Sonic 3D Blast. The game was used for contests on the Sega website, in promotion of the Sega Saturn and its games. It was removed from the Sega website in 1999.


Sonic running through the Tails Special Stage.

Sonic's Bonus Game is a runner game where the player takes control of Sonic the Hedgehog. The game features three rounds that is made up of a single bridge, each one with three sections (aka levels) to play through. The goal of the game is to complete all three rounds in the game. Upon completing the third level in a round, the player is able to move onto the next round.

During gameplay, Sonic will be stuck running forward without being able to slow down or stop. HIs only options are to move to the sides or jump. Along the way, Sonic can collect Rings which lie scattered along the bridge. Along the path are also Bombs, each of which will subtract ten Rings from the player's Ring count in case Sonic makes contact with them. Collecting Rings and completing rounds reward the player with points which are tallied up on the result screen.

In order to clear a round in Sonic's Bonus Game, the player must collect a set amount of Rings that appear on the rounds' bridges before reaching one of three checkpoints, which are marked with a pair of flagpoles. The Ring requirements for each checkpoint remain the same in all rounds (50, 100, and 150 Rings in order). When the player gets close to a checkpoint in a level, a tally will appear on the HUD that tells how many Rings the player has left to collect. After passing the third checkpoint, the player will receive a Chaos Emerald and move onto the next round. If Sonic has not gathered enough Rings when reaching a checkpoint however, the player will receive a Game Over and be sent to the result screen where their total score is tallied up. The player's score is determined by the Rings and Chaos Emeralds they have collected. Also, in case the player gets a Game Over, they will have to start over from the beginning.

The player can choose between two sets of rounds in Sonic's Bonus Game: "Knuckles Special Stage" and "Tails Special Stage". Aside from the differently colored backgrounds of each set of rounds however, the rounds and their levels are identical.

The game also features a "How to Play" menu where the player can learn the basics of the game via slides, and a "High Scores" menu where the player can see their highest scores from earlier playthroughs.


The default controls are listed below, but they are configurable on the third slide of the "How to Play" menu.

Button formation Movement
[,] Move left
[.] Move right
[L] Leap



Gimmicks and obstacles


Playable characters

Non-playable characters


  • Despite being nearly identical to the Special Stages of Sonic 3D Blast on the Sega Genesis, the website description for Sonic's Bonus Game states that it's based on the Special Stages of on the Sega Saturn version.[1]


  1. Rec Room. Sega. Archived from the original on 10 March 1997. “Help Sonic capture the rings in this Shockwave game based on the bonus level from the Sega Saturn game Sonic 3D Blast!”
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