World 4-5 is the fifth level of World 4 in New Super Mario Bros. Wii.
This level is set on a beach filled with Lakitus. The level begins near a palm tree with a square cloud above it, which turns into a Lakitu that throws coins instead of Spinies when the player hits it. Two ? Blocks are found, as well a Lakitu that throws Spinies. One of the ? Blocks contains a Yoshi. Several palm trees follow, some of which having fruits, along with a Piranha Plant. Another square cloud is above some blocks, and is followed by three Stretch Shrooms. Another square cloud follows, along with a Piranha Plant and more palm trees with fruits. The player then arrives at the Checkpoint Flag, which is followed by a square cloud, and two ? Blocks, and a few Piranha Plants in Warp Pipes. After a few more Piranha Plants, a Red Ring is found near five Stretch Shrooms. Another square cloud is found, followed by a few more Piranha Plants, as well as a row of bricks containing a Coin Block. This is followed by the pole.
- Star Coin 1: The first Star Coin is near the start of the level just before the first set of Stretch Shrooms, floating high above a green Warp Pipe with a Piranha Plant. Mario and co. can reach it either with Lakitu's Cloud, or by jumping to it from the tree.
- Star Coin 2: To the right of the third square cloud, the second Star Coin is floating high in the air, surrounded by several other coins. Mario and co. must steal Lakitu's cloud and fly to the Star Coin to obtain it.
- Star Coin 3: Right after the midway point, there is an upside-down green Warp Pipe that cannot be seen from the ground. Mario and co. must get onto the nearby palm tree either with Lakitu's cloud or by dismounting Yoshi at the apex of his flutter, then jump into the Pipe. Once there, Mario and co. can hit one of the square clouds to summon a Lakitu and steal his cloud to fly up to the third Star Coin, or again dismount Yoshi in midair.