Here is an early example of the 2D, 3D parallax scrolling effect we have on most of the levels in Quest Runner, the Pokke Mines shows off the effect particularly well.
Many of the levels feature multiple levels of parallax scrolling and/or a SNES era Mode 7 like effects on the background.
Eventually we decided not to go in this direction, sprite art takes a surprisingly long time to create if you want to do it well.
The world map went thru a few iterations, the world in Quest Runner at first was one connected in a way that if you ran thru all the levels you would eventually circle back around at where you started.
We've been updating some of the old art with new fancy more stylized artwork. While working on the game I made over 75 characters during the course of development, my drawings and style got better as time went by.
So I decided to make improvments to older characters to match some of the better style of the latest characters.