Yume Nikki Cheats :
Code - Nasu eggplant head cheat
To get an eggplant head in NASU, at the title screen press left, left, right, right, up, down, up, down. You will hear an odd noise indicating that you did the code correctly. The bouncing eggplants occur in a higher frequency. You cannot save your high score, but you can practice eating two eggplants at once.