I don't know if this has been discussed yet but I think it has potential. While fooling around in training I noticed that you can perform Olimar's U-smash while dashing. If you U-smash and simultaneously dash your pikmin will fly straight in the air and olimar will dash in the direction you told him to.
This technique also seemingly increases the horizontal range of the attack. Normally if you and your opponent are both on the ground you have to be very close for the U-smash to hit. If you dash towards them and simultaneously U-smash you can hit them from further away.
I can see a number of ways this could be very useful. If your opponent is coming down on you you can do this to hit your opponent while moving out of the way. Another interesting thing you can do is dash towards your opponent while doing this and then as soon as the dash is over you can do an F-smash.
As far as I know this seems to be the only attack in the game which can be performed while dashing but I am probably wrong.
This technique also seemingly increases the horizontal range of the attack. Normally if you and your opponent are both on the ground you have to be very close for the U-smash to hit. If you dash towards them and simultaneously U-smash you can hit them from further away.
I can see a number of ways this could be very useful. If your opponent is coming down on you you can do this to hit your opponent while moving out of the way. Another interesting thing you can do is dash towards your opponent while doing this and then as soon as the dash is over you can do an F-smash.
As far as I know this seems to be the only attack in the game which can be performed while dashing but I am probably wrong.