Doraemon

Being a machine, he does not have some average needs of a regular person, whatever he consumes is automatically converted to energy within his nuclear furnace, although he does need the energy to keep him on the move. His mouth can expand, allowing him to devour larger chunks of food easily. While he has sensors which work similar to their organic, living counterparts on most creatures, his hide and fuselage are incredibly tough, not deforming even while under attack most of the time, although the sensors often end up paralyzing him (such as against biological agents and temperature). While his outer skin can be stained, it is not difficult to clean.