20 1 5Actions Report Solution This achievement is done within your INterior. Once inside, buy the Sidekick Discotech room from the toy store. Attach the room to one of the door connections and then summon one of your sidekicks. Pick up your sidekick and throw him through the door to the Discotech, after a moment the room will open and you can walk inside. Once you do so, the achievement should unlock.Guide not helping? View 1 more guide for this achievement.Showing most recent comments. View all comments. You're right, I was cranking out so many of the missions to unlock sidekicks I spaced on that. Edited.Posted by grishnaar on 03 Sep 15 at 00:58 When I throw a sidekick through the blue flappy discotech door, the sidekick spits back out and nothing happens. I can't get the game to open up the room.Posted by GrislyGrizzly on 01 Dec 15 at 16:16 You need to complete at least the basic sidekick tutorial in the Toy Box Hub (green door; single player only). After doing this, the sidekick tab will be available in the pause menu so you can summon a sidekick as needed and the door will open.Posted by theXellimist on 25 Jan 16 at 21:55 Leave a comment