Below you will find some of the many Filipino exotic foods. Some of them are linked into their corresponding recipes and how-to-cook pages in case you want to try them at home.
Balut
A balut is a fertilized duck (or chicken) egg with a nearly-developed embryo inside that is boiled and eaten in the shell.
Balut eggs are believed to be an aphrodisiac and considered a high-protein, hearty snack. Baluts are mostly sold by street vendors in the regions where they are available.
Soup #5
Soup Number Five, is a soup made from bull's testes or organ. Like balut, it is believed to have aphrodisiac that makes people to say it is better to eat this soup than spending money into some sexual performance enhancing drugs.
Ginataang Kuhol

The French call "kuhol" as "escargot". Kuhol or escargot is an edible snail. Guinataang Kuhol is a favorite appetizer in Filipino restaurants. It is also a popular pica-pica (finger food) that goes well with cold beer. Ginataang kuhol is a spicy dish.
Dinuguan
Dinuguan is a Filipino savory stew of blood and meat (typically stomach, intestines, ears, heart and snout) simmered in a rich, spicy dark gravy of pig blood, garlic, chili , and vinegar.
More exotic foods can be found at this Filipino street foods blog post.
How about you? Any more exotic foods to add?