

The first level was Sonic entering a city located inside Green Hill Zone. The opening of the game could have been different.Sunset Heights is meant to be the Rookie's first real successful solo mission.There's a line to set up that the attack on Sunset Heights is a recent development, explaining why the city's still engulfed in flames and destroyed in the final.By meeting and teaming up with Sonic, the Rookie was meant to learn confidence, overcome their fears, and understand the power of teamwork. The Rookie has a much clearer character arc: Early missions portray the Rookie as cowardly, as they are often anxious and shaking with fear.Sonic breaking himself out of prison is more obviously a side effect of a larger battle being led by the resistance to assault the Death Egg, whereas in the final game it seems to happen somewhat at random.Eggman's plan was to humiliate Sonic by conquering the world first and then killing him after his spirit had been broken. Instead of being "banished to space", Sonic was deliberately being held hostage on an asteroid near the Death Egg.In this script, Knuckles confirming Sonic's status is treated more as a confirmation of the obvious. The final game seems to imply that the entire resistance thinks Sonic is dead, leading to a scene where Knuckles is surprised to find Sonic's still alive.Following Sonic's defeat and disappearance, Tails also disappears at the same time, which isn't explicitly stated (though implied) in the final.It's clearer that after Infinite's defeat, he is absorbed back into the Valtron/Phantom Ruby, as a beam of light pulls him into its power source.It's implied that Eggman invented him to test the Valtron. Since this script seems to predate the plans for "Episode Shadow", Infinite's backstory is different.Sonic is once again seriously wounded from the encounter. Infinite is finally shown to the player for the first time when Sonic encounters him in the Casino/Jungle.It's implied that Infinite warps space to nearly kill him with a flurry of blows. In the script, the beating Sonic receives from Infinite is much more intense.His form, powers, and motives are left a mystery for nearly half the game. He's portrayed as more ruthless and mysterious. A lot of the things are better explained, clearer, or make more sense than in the final.The Rookie/Avatar is referred to as "Buddy".Instead, there's a piece of technology called the "Valtron", which is described as looking like a blue pebble. Since Forces was in development before Sonic Mania was even conceived, the script makes no references to the Phantom Ruby.According to the script, the original name was " Sonic Wars".The basic story is the same, and some dialogue made it into the final, but even then it has many, many differences. An entire early Japanese script from January 19th, 2016 (last updated on March 24th, 2016, based on SoA comments) was found and released online by Windii.
