yup, I understand required frames are necessary for TargetState and custom states, but it's all about compatibility, I guess. If the program still runs and debug text is off, what's the matter?
Otherwise, it's a quick method to make the char unexportable (unless you want to edit each one of them, adding the missing sprites) to other MUGEN platform than the one it's going to be released.... since Molebox is just a packer (and also a virus / malware according to certain antivirus programs).
April Fools