Credit to @ultrarailfan2000 and Casey. Made this as lore for Renaldo. If you are you asking why his face looks different after being introduced to the FFRR, it is the result of years of deterioration from the retirement years. This also caused his voice to sound deep and eerie.
Why he left FFRR: He felt like he wasn't being served enough as he thought he wasn't going on excursions that much compared to the others, so he decided to leave for personal gain. After realizing the FFRR created U&F, Renaldo got upset and so U&F Fallout started. However it failed, so he got Max and Little Timmy to be his allies, mind-controlled Ultra, and this is how we got Ultra's Insanity. He has two goals: To DESTROY U&F and the Fox Field Railroad.
