This shows off all four endings you get depending on how many Treasure Chests you have after beating all four bosses and the final boss, Princess Shokora's form will change depending on the prerequisite and will effect the ending.

Baby Form Princess Shokora 0 Chests
Wario Form Princess Shokora Between 1 and 5
Canon Form Princess Shokora Between 6 and 11
Adult Form Princess Shokora All 12 Chests