The fourth level is impossible! How can I possibly get to the other two stars! The jumping pad doesn't get me high enough, that Boo is tricky to dodge, and the Warp Pipes do nothing!
Thank you for the tip. I found the other levels difficult as well, but they were like the problem I had with the fourth level. I just didn't know what to do and had to figure it out. Liked the boss fight as well. My way of describing this game would be like a cross between Super Mario Bros. and Decap Attack.