Wall-E ran at first sight, this random creature was chasing him and Wall-E is very shy. Wall-E couldn't escape; the creature was way too fast. And it slowly approached Wall-E as he gave up on his escape. Eve came rushing in to save Wall-E and got between Wall-E and the creature. The creature was intimidated at first but then jumped in joy. It ran and picked up a stick and brought it to Eve. It then jumped back and watched the stick longingly waiting for something to happen to it. Wall-E looked with curiosity. He shakily reached out his hand for the stick and the creature jumped to the right, then to the left, filled with extraordinarily happy anticipation. Wall-E grabbed the stick and the creature stopped everything. Wall-E held it above his head and the creature's eyes seemed to grow five times its normal size and it did not blink once. It only watched, waiting. Wall-E threw it and the creature quickly gave chase to it. It picked up the stick and brought it back to Wall-E.
This repeated for hours and Wall-E got happier with every throw. Eve sat to the side and watched. With each throw she grew more tired.
The creature was about two feet tall off the ground. Its body was entirely black except for its neck and belly and a little strip down the middle of its face. Its ears were perked up but would sometimes flab down when it ran. Its face looked like it was compressed in but it made it exceptionally cute.
Wall-E would undoubtedly try to figure out what this creature was through a video library that has been assembled since the humans got back. It was made up of tapes and DVDs left behind by humans from their past in homes, stores, etc. But right now, Wall-E was having the time of his life. This creature was the happiest thing Wall-E had ever come across and he could not help but be engulfed in it as if he were dragged into a black hole full of joy.