The Poster only knew how to put characters in and has no idea how the fuck the engine actually works, as evident by their repeated attempts to "damage" broken or incompatible heleprs like the Goombas or bricks. Resizing Dio would take like one click and two taps on the keyboard, maybe a little more if you wanted to resize The World too or his knives.
Joseph: "OK, everyone, be careful! He's gonna spring outta that coffin so open carefully!" *Slowly opens coffin* Bloody, beat-up Nukesaku in a Toadstool Hat: "Sorry, JoJo, but Lord DIO is another coffin!" Everyone: "!!!!!!!!!"
"Sorry JoJo, but Brando is in another castle!" "Sorry JoJo, but the Red Stone of Aja is in another castle!" "Sorry Jotaro, but DIO is in another castle!" "Sorry Josuke, but Kira Yoshikage is in anoth-*BOOM*" "Sorry Giorno, but the boss is in another castle!" "Sorry Johnny, but the corpse part is in another castle!" "Sorry Josuke, but the rokakaka fruit is in another castle!"
