Phalanx was difficult for me because I didn't understand what to do at first and wasted all my fire bombs, but I did it on my second shot.
Tower knight was pretty easy, got him 2nd time.
I'm going pure dagger (well, storm ruler for 4-3) in this build. (and a bow for farming and geckos).
I still have 1-3, 1-4, 2-3, 3-2, 3-3, 5-1, 5-2, 5-3 left to do. Damn, that's a lot :(
Hopefully I'll finish 3-2 and 2-3 tonight and finish all of my PBWT and PWWT events in world 2 also.