Studies:

https://jamanetwork.com/journals/jamasurgery/fullarticle/399740 (video gaming surgeons > non)

https://www.nature.com/articles/mp2017155 (shooters vs non)

http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0187779 (Mario 64 and gray matter growth)

https://news.uci.edu/2015/12/08/playing-3-d-video-games-can-boost-memory-formation-uci-study-finds (3D games seem to be the mojo)

http://nouvelles.umontreal.ca/en/article/2017/08/07/playing-action-video-games-can-actually-harm-your-brain (not all types created equal)