Historic mode:
Unlock any five of the extra bonuses. Historic mode changes the
graphics to sepia tone colors.

Extra bonuses:
Complete the indicated task in each chapter to unlock a figurine
for the Wax Work.

Chapter 2 - Take all three tea cans and stack them on the other cans.
Chapter 3 - Find all five starfish and pick up Jack''s duffel bag and
enter room 7 in the hotel.
Chapter 4 - Free Pandu of all three accusations.
Chapter 6 - Repair the boat with hammer and paintbrush and slash all
seven pumpkins.
Chapter 8 - Get all three cups and place them on pedestals/
Chapter 9 - Find Major Bug and give it to the British guards.
Chapter 12 - Assemble the signpost.