Kinect Sports Rivals

My method was done solo, but you could also do this online with another person. To get this achievement, it is preferred that you max out to level 20 so you can purchase the Inca Blast Wave ability, but any decent Blast Wave will do. Next thing to do is load up Starboard Junction. As soon as the game starts you will need to climb as quickly as possible to catch up to the other 3 AI (drivitar) players. You must pull off all three players within the first 20 seconds of the game or else restart. The reason being when you knock off all three players, this will give you the advantage to set up as well as get your Blast Wave ability filled completely.

Now here comes the fun part: Set yourself up at the first intersection where you can choose to take a jump shortcut or climb around to the left to take the normal route. Remain still and once you see a couple of heads peek up from the bottom of your screen, activate the Blast Wave ability. If you did not get all three, restart.

For me, I got the achievement by having my Blast Wave touch the other players, but I only knocked off 2/3. This might have been a bug in my favor, but I don't know if this will be the same for everyone else. Your mileage may vary.


TL;DR

1. Unlock a decent Blast Wave perk
2. Load up Starboard Junction
3. When game starts, knock off all three players
4. Set yourself up where the route starts to veer left
5. Activate Blast Wave ability as soon as you see AI
6. Achievement unlocked/Restart

Good luck!