I tried that once, and all I got was a ghostly robot thingy. In other words, my experiment with ghosts and robots failed. Heck, I tried it in 20 attempts, but each one backfired on me, needless to say.
Note to self: Don't mix ghosts and robots together because they hurt!
I though the same thing... Then I played Spider-man Edge of time.
*light globe over the head*
DP and MLaaTR's universes are perfectly compatible. So much that they could naturally coexist! Their only difference is the timeframe (the former is set in the present, while the latter happens in the future).
If there was a DP X MLaaTR crossover, what should the arc words be? Time travel. Time, freaking, travel.
In conclusion, ghosts and robots mix together perfectly, so long as you add some sprinkles of time travel over it!
(This comment is copyrighted by Coobalt-Dahonli-One)