Explain your game core concept.
The concept of this game is to collect as much mud as the player can in a time limit of 20 seconds. The mud falls from random locations in the sky magically!

The catch is that the JCB should only move in the reverse direction. If the user tries to move it in the forward direction, the penalty increases, and the total score decreases.

The mud is picked when it comes close to the claw of the JCB.

The backdrop is set at a pre-sunset time. Also, the grass on the ground moves.

The possible movements of the JCB are forward and backward and the movement of its arm (up and down) and its claw's rotation. (6 degrees of freedom)

The JCB moves forward and backward using the left and right arrow keys. And its arm moves using WASD. W&S to move the arm and A&D for the claw.

How does it relate to the theme?
The JCB should only move in the reverse direction so as to avoid any penalty. The concept of reverse is thus incorporated here.

Additionally, the mud falls down and the JCB has to pick it up. In real life, however, the JCB has to pick up the mud from the ground. This is also reverse of what happens in reality.

Its title, Dum Noitcelloc is reverse for Mud Collection so as to tell that the mud collection should preferably happen only when the JCB moves in the reverse direction.