Nasu Eggplant Head Cheat
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.
Hints
Hyper Speed Glitch
When you enter the dream world, go to the chair at the table. Equip the bicycle and push down. Exit the Chair. Now you will be moving 4X speed!
Walk through Walls Glitch
Enter the dream world and go on the chair. Put on the knife and walk off the chair. While walking off, switch hands with the knife. Now you may walk through walls with any effects active.