King Dedede (SSBB)/Neutral attack/Infinite
King Dedede twirls his hammer. While the multihits themselves are inconsistent, on shield, the move is quite beneficial. Using the wide window to begin the rapid jab from the second hit is also a decent way to force Dedede's way through shield. It's also -7 on shield, making this a relatively low-risk option to go for. Due to the high animation length overall, however, it's generally not good outside of this scenario, with forward tilt almost always being a better option.
Animation length is only for the finisher.