Duck Coin 1: When you first start jump on slope then off on other side.
Duck Coin 2: Jump from one ledge to another at the part with three slopes together.
Duck Coin 3: Break blocks as super mario and go down pipe.
Duck Coin 4: Jump from ledge to ledge until you reach the top of the hill.
Duck Coin 5: After the pipe with the Jumping Piranha Plant and before the block. Near end.
Beating this level will open a path to the Yellow Switch Palace.
There are no secret exits in this level.
Duck Coin 1: Jump on moving yellow blocks and then to the next edge.
Duck Coin 2: When you get to your third swinging ledge take it all the way around and fall on the pipe then go in.
Duck Coin 3: The third coin is right after the halfway mark.
Duck Coin 4: There will be a long stretch of moving yellow blocks and the fourth coin is at the end.
Duck Coin 5: At the last swinging ledges before the goal.
Beating this level will open a path to Yoshi's Island 4.
There is no secret exit in this level.
Duck Coin 1: In between the background trees. Near a Koopa.
Duck Coin 2: In between the next set of background trees.Near Koopa.
Duck Coin 3: After killing the Charging Chuck jump of ledge.
Duck coin 4: After the first mounty mole there are two blocks. Hit the secound one too release a vine. Climb vine and get coin.
Duck Coin 5: Climb back down vine and jump to next ledge.
Beating this level will open a path to Yoshi's Island 3.
You First get Yoshi in this level.
There are no secret exits in this level.