Watermelon
Mango
Pear
Peach
Red apple
Green apple
Passion fruit
Strawberry
Lemon
Lime
Orange
Bananna
Pomegranate (Sometimes appears in Classic Mode and you had to slice it several times as fast as you can)
Dragonfruit (It is a rare fruit and if you slice it, you'll get bonus)
Starfruit (Now in the game, if you slice it you'll get a certain amount of "Stars", these "Stars" can be used to unlock blades/backgrounds and more)
Also, in the Arcade Mode there's multi colored bannanas that give you certain bonuses.
I believe there will be more fruits featured in Fruit Ninja in the future. I might didn't catch any other fruits in this answer but I tried remember the best I could. (: Hope this helps you.
You get it after playing for a while.
Red and green
The ninja monkey's name is Chop Chop. To get him your going to need: Any colored Dragon Fruit + Any colored Dragon Fruit + Any colored Dragon Fruit=
dragon fruit
for ninja chop chop you need 3 dragon fruits
There is an extremely rare fruit called the dragon fruit that is worth 50 points.
It is a rare fruit that just randomly appears. It is worth 50 points.
I don't have a clue
It is the fruit fly that gives you the year of the dragon award
039 Shelby the Slapstick Tortoise [Ninja] Black Dragon Fruit, any Dragon Fruit, any Magic Beans
It gives you ChopChop, a ninja monkey
039 Shelby the Slapstick Tortoise [Ninja] Black Dragon Fruit, any Dragon Fruit, any Magic Beans