There's three lanes of lucky blocks (we used amethyst and pink lucky blocks, along with the default yellow one), all with varying levels of parkour (easy, medium, and hard). After the parkour is an arena where you fight with everything you got from your lucky blocks.
There are two towers you can use in the arena for if you get bows, and two sets of bleachers for the people who die first.
Make sure you're in survival :).