Start at 1875 (Part 3): Hold A + B at the title screen to display
the password menu. Enter FLUXCAPACITORISTHEPOWER as a password
and press Select, Start.
Hint: Access rooms: Occasionally, rooms will appear that seem impossible
to reach. If they are too high for your character, try going back
in time and planting an acorn under the desired location. After
returning to that spot in the future, a large, healthy tree suitable
for climbing should be available.
Information in this section was contributed by Jesse Smith.