THe simple predicate is an action, and it does not give more information about the action or about who is performing the action, usually the simple predicate is the verb of the sentence, in this case is Featured, the sentence´s subject is "The First X games" and the verb of the sentence is "Featured" because of this the simple predicate of this sentence is "Featured".
I looked it up and got 2 answers out of three possibilities a. nonstandard usage b. conversational speech c. slang some people said a while others said c
