Magic Tricks

Yes, absolutely.

36 of the cards are gimmicked, which leaves a bunch of ungimmicked cards in the deck to play around with.

Here are some examples of some other classics you could do:

-Tell Me the Truth What is it? (sometimes called the 2 Card Monte)
-An ace assembly (these usually use the top 12 cards)
-If you force both selections you could perform the Chicago Opener with the Pocket Nightmare deck.
-You could do Twisting the Aces or Dr. Daley's Last Trick
-You could also do French Kiss by Wayne Houchin before performing Pocket Nightmare.

In fact, in the original Pocket Nightmare routine Max only used 15 gimmicked cards. So, if you need to add more normal cards for other routines you could