Sonic Generations

Sonic Generations

49 Achievements

1,000

20-25h

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All Stages Cleared!

All Stages Cleared!

Cleared Sonic Generations.

50

How to unlock the All Stages Cleared! achievement in Sonic Generations - Definitive Guide

If you're reading this, you've likely had a difficult time with the final boss, the Time Eater, in particular having enough rings to even be able to hit it 3 times. Well, so did I, until I tried the following:

At the start of the fight, switch to Classic 2D Sonic and stay in it.

Hold X down for the entire fight.

Do a few dry runs to get some idea of where the rings are. They are much easier to get in 2D and you can see them coming up a bit sooner than in 3D.

When among a long row of rings, move up and down. It really helped me collect a lot more. I had over a hundred rings at the end of the fight, which helped me S-Rank the fight.

To repeat, keep yourself in 2D, and do not let go of X to boost.

When you do get close enough to the boss's core and the green homing attack lock-in circle becomes visible, do NOT use A to lock-in. Instead, just keep holding down X to continue boosting and just grind up against the core.

When the undodgeable fire flare wall attack comes out at you, still hold X while also holding down the L and R shoulder tabs to avoid it.

Not only did I reliably get close enough, the fight ended fairly quickly and with plenty of rings and without me dying, which to my shock got me an S-Rank on what previously an impossible battle.

TLDR: Stay in 2D the entire time.
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23 Apr 2022 02:02

In order to do this you will have to have beaten the Egg Dragoon to have access to the boss area, and all 8 Chaos Emeralds (you get 5 from the main story, the rest need to be obtained by racing Metal Sonic, Silver, and Shadow). Then, you will need to fix the gears to unlock the final battle. Once you have beaten the two Robotniks, this achievement will pop.
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This trophy will be rewarded once you complete the game and defeat the final boss, Time Eater. The stages are divided by the Eras in which each stage came from and its system. The following Eras are:

  1. Classic Era
  2. Dreamcast Era
  3. Modern Era


In each Era there will be 3 stages, one from 3 different games of those Eras. Here is the list of each level and what game they came from:

Classic Era:

  • Greenhill (Sonic The Hedgehog)
  • Chemical Plant (Sonic The Hedgehog 2)
  • Sky Sanctuary (Sonic The Hedgehog 3 & Knuckles)


Dreamcast Era:

  • Speed Highway (Sonic Adventure)
  • City Escape (Sonic Adventure 2)
  • Seaside Hill (Sonic Heroes)


Modern Era:

  • Crisis City (Sonic the Hedgehog (2006))
  • Rooftop Run (Sonic Unleashed)
  • Planet Wisp (Sonic Colors)


Here is how story progress will work. Once you complete a stage with Classic and Modern Sonic the next stage of the Era will unlock, after you have completed all the stages of an Era the challenge acts and rival battle will unlock. To proceed to the next era you must clear the Boss Battle of the current Era you are in however the gate to the boss battle is locked so you will have to complete at least 1 Challenge Act from each Stage to unlock the keys to play the boss battle and then you can proceed, you can do the Rival battle whenever you want however it would be advised that you clear it now. Each boss battle and rival battle will give you a Chaos Emerald needed to unlock the gate to the final boss at the end.

For tips on how to defeat the final boss, Time Eater, please refer to Can't Touch This

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After completing all levels, defeating the final boss and watching the credits, a trophy will drop.
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10 Dec 2011 07:36