Heath Ledger gave us a stellar performance as the Joker in The Dark Knight which was released during the time of the build.  The initial accidental mix of green and purple parts solidified the naming of this vehicle.

Axial's AX-10 provide the basis for this Crawler as well as a number of several other companies.  The Joker is our second generation crawler and showcases features that weren't even dreamed of on the first generation.

 
During the build of this crawler, we listened to The Dark Knight soundtrack quite often.  The soundtrack is actually quite powerful and we think you will enjoy a listen as well. 

Soundtrack album for the 2008 Batman movie, The Dark Knight. Music composed by Hans Zimmer and James Newton Howard.

Check it out on iTunes!