Rather than alternative readings (as seen in manga etc.) I mean deliberate use of a more complex kanji in place of a simpler one, or use of kanji when kanji would not normally be used. A few examples: ...
Some song lyrics in the official lyric book that accompanies the CD is sung as another word. Usually, the way it is sung is given as a furigana on the kanji: Written: 君が希望に変わってゆく ...