From the Super Mario Wiki
Honeyhop Galaxy is a galaxy located at World 4 in the game Super Mario Galaxy 2. The level revolves around the use of the Bee Mushroom. Honeybees are found throughout the level and teach Mario on how to use the Bee Suit. The level also features honey walls, which Mario can traverse as Bee Mario. Queen Bee is also found in this galaxy, as are many Choppahs and Octoguys.
NOTE: Unless otherwise noted, all names are unofficial.
A fairly big planet. There are a lot of water ponds in this galaxy, and several enemies such as Octoombas in them. There are also Choppahs that fly around honeycombs. It has a cloud with Floaty Fluff on it. Mario can either fly over to the Queen Bee Planet in Bee form or use the Floaty Fluff. Popping the balloons is optional.
Queen Bee Planet
This planet is very similar to the Queen Bee planet seen in Super Mario Galaxy, as it also includes a water floor that spouts a waterfall below. There are enemies surrounding it, with Queen Bee at the top. There are five Silver Stars scattered around this planet.
Green Star 1
The first Green Star is located behind the red balloon between the Starting Planet and the Honeyhop Planet. The player must use the Bee Mushroom and hover to the red balloon to reach the green star or catch it by using a Floaty Fluff.
Green Star 2
The second Green Star is right in front of Queen Bee. The player must crawl up Queen Bee and fly in front of her with the Bee Mushroom.
Names in other languages