At the end of the credits, the Jumanji drums can be heard along with herds of Ostriches running in the real world.
There is a short scene in the end credits.
The "real world" characters from the last film are all credited as "Young." Young Spencer, Young Bethany, etc. Colin Hanks is credited as "Young Alex," even though he is older than his avatar, played by Nick Jonas.
At the end of the credits, an ostrich can be heard squeaking.
The start of the end credits is displayed on a map of the land of Jumanji. Also on the map are various objects representing the main characteristic of the real people (the producers have coins/money, the executive producers show a spreading inkblot, etc.) as well as that of the actor's roles (Kevin Hart has a book on linguistics, Karen Gillan has Nunchuks) associated with the film.