The designation "P2" suggests a secondary phase, a harder difficulty, or a continuation of a previous chart. The "v1.0 Final" tag indicates that the creator has concluded the development cycle, freezing the chart or track for official release and competitive play.
Before we discuss the content, we must understand the name. Why "Oh Daddy -P2 v1.0 Final- -Nightaku-"? Each segment is a clue. Oh Daddy -P2 v1.0 Final- -Nightaku-