These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Ensemble Darkhorse: Squishie. He's only shown up in one chapter so far but fans absolutely adore him, and there was much rejoicing when it was revealed he wasn't dead.
"Funny Aneurysm" Moment: One filler strip discussed what could be under Guy's mask; one of the options was a robot. In Chapter 4 we learn that Guy's entire race was roboticised and since then he's developed a crippling fear of automatons.
The Woobie: Guy in more recent chapters. His hometown was invaded and his entire race turned into robots, which would have been his fate had McCoy not intervened. This caused his deathly fear of robots, and when he eventually does befriends a friendly little Bob-Omb it sacrifies itself to save the group. Thankfully for the poor guy Squishie turned out to be repairable.