No argument from me; your suggested names are spot on for the game comprised of the resultant melange. Albeit, I still maintain that Wadzilla is the exactly correct name for the tool that creates the mashup.
Also.. screenshots? Of text. Text describing a 2.5D world comprised of 2D graphics rendered in 3D for presentation on a 2D display in our 3D world? Yeah, you’ve got the spirit! :-)