Many 1 star reviews say the same, it introduces random attacks when playing Smash Ultimate. For me, these are attacks from the left. However, it doesn't seem to have any effect on Aether's rivals, so I don't know. I can't contact PDP to get a replacement. The controller itself feels nice and the interchangeable sticks are good, but for Smash Ultimate it's crazy broken and it happens to a lot of people so stay away.