Master the System achievement in Sonic's Ultimate Genesis Collection

Master the System

Unlock Everything

Master the System+0.3
1 guideOffline Game ModeSingle Player

How to unlock the Master the System achievement

  • RockTheShazbotRockTheShazbot58,596
    23 Feb 2009 26 Feb 2009
    34 0 1
    Everything is unlocked by doing the achievements EXCEPT Phantasy Star. To unlock Phantasy Star you need to beat the first boss with two players in Sonic 2. To do this all I did was select 1 player but with two controllers on and connected. Every few seconds in the game (probably works best when Tails in on the screen) press something like jump or move the analog stick. Once you get to the boss, I had both Sonic and Tails next to each other and jumped when the boss was in the right spot. After a few hits the boss will die and you will unlock Phantasy Star (or the achievement if you had everything else unlocked.
    Showing only comment. Leave a comment.
    JJFinch1987I have unlocked every video and arcade game and there are no lock icons, and master the system achievement hasn't unlocked. I have got it before but I had to recover my gamertag so it reset all the achievements I won offline. the reason why I recover it was because of glitched achievements in the new bioshock 2 dlc. So today i went back and earn 33 of 34. I don't why this achievement isn't unlocking? Any suggestions?
    Posted by JJFinch1987 on 07 Sep 10 at 18:18
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