HomeLego News&Video FeedLEGO Marvel Superheroes Level 3: Exploratory Laboratory LEGO Marvel Superheroes Level 3: Exploratory Laboratory Nathan Lyle January 13, 2014 Lego News, Video Feed 1 Comment Are you excited? Time to dive into the LEGO Marvel Universe! A complete walkthrough of level 3: Exploratory Laboratory by BrickUltra running on Xbox One! Hope you guys enjoy the video! About The Author Nathan Lyle Hi, my name is Nathan Lyle and I'm the owner of BrickUltra. I love soccer and creating YouTube videos with LEGO! I love listening to community suggestions and opinions so that we can make your time on BrickUltra the best! Latest Comments Jim E. June 12, 2014 I’ve completed all 15 levels on story mode and only Symbiote scientist that I have is the Hazmat one. I’ve even played level 3 on free play mode and gotten all Minikits, Stan Lee, True Believer and the Gold brick. But still on the character screen where my Symbiote scientist is at it still has a question mark on him saying he’s locked. How can I purchase him?? Reply Leave a Reply Cancel reply Comment Current ye@r * Leave this field empty Notify me of follow-up comments by email. Notify me of new posts by email.