Ok I spent way too long trying to beat this, but I finally did at 15-11. Basics: You can spike the ball and influence the direction. Holding up makes it a garb

Ok I spent way too long trying to beat this, but I finally did at 15-11. Basics: You can spike the ball and influence the direction. Holding up makes it a garbage hit so you must release jump immediately after jumping. This does not affect jump height. The two useful options are holding left and holding down, but not both (another garbage angle). Left is your bread and butter. Most shots should be left. Down works if you're right next to the net only, and will depend on where the ball is. Generally speaking, don't try to spam strikes. Just stay on the ground to set the ball. You want to get it nice and slow in your center, which will bait ai pikachu into coming forward. then you do a left shot to try and get him. The first few second are the easiest to score on. If ai pikachu is serving jump a bit after him and left spike. I score about 20% of the time on this return. There's a good chance that he will return in a way that is vulnerable to a down spike at the net or another left spike, but if you fail to score here, go to the neutral game setting tactic. If you're serving don't hit the ball. Walk forward an inch to set the ball in your court and then left spike him after one toss. Gets me a point on serve about 1/3 of the time. Don't jump to anticipate where the ball will go. Wait until he hits it at least. You can also do behind the back spikes which works well for left spikes but is a suicide for down spikes. I only really figured out the downspike at the end. I think I could crush him with this knowledge but that took too long.