Sir Goatfather Posted September 24, 2011 Share Posted September 24, 2011 Apparently it's unmissable, but I just played through the game in co-op mode and it didn't unlock. Is there any way to get it again quickly? I'm not even sure what the achievement is. Link to comment Share on other sites More sharing options...
Mr Chaotix Posted September 24, 2011 Share Posted September 24, 2011 Apparently it's unmissable, but I just played through the game in co-op mode and it didn't unlock. Is there any way to get it again quickly? I'm not even sure what the achievement is. Door Prize is a single player achievement and IS missable. http://www.xbox360achievements.org/forum/showthread.php?t=307288 Link to comment Share on other sites More sharing options...
Sir Goatfather Posted September 24, 2011 Author Share Posted September 24, 2011 Door Prize is a single player achievement and IS missable. http://www.xbox360achievements.org/forum/showthread.php?t=307288 Wow. Well that really needs to be changed from the official guide. http://i.imgur.com/FSHme.jpg Link to comment Share on other sites More sharing options...
d0ct0rscarecr0w Posted September 24, 2011 Share Posted September 24, 2011 Wow. Well that really needs to be changed from the official guide. http://i.imgur.com/FSHme.jpg whoever wrote that must not know what they are talking about... that achievement is neither co-op nor story related... Link to comment Share on other sites More sharing options...
Dr Evil24 Posted October 11, 2011 Share Posted October 11, 2011 You will be able to get this achievement and find the missing experiment at the same time. Link to comment Share on other sites More sharing options...
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