Board Thread:Plants vs. Zombies 2/@comment-5760976-20171020211451/@comment-25089892-20171110144331

A detailed explanation of how the PvP mode works:

[JOUST_HOWTOPLAY_1_DESCRIPTION] Defeat zombies to score points. Score more than your opponent before time runs out to win!

[JOUST_HOWTOPLAY_2_DESCRIPTION] Zombies get more difficult and more valuable as you defeat them quickly. The further from your house they fall, the more you'll score!

[JOUST_HOWTOPLAY_3_DESCRIPTION] Joust matches reward Crowns, Win Streaks reward bonus Crowns. Earn as many Crowns as you can to climb to the top of your leaderboard!

[JOUST_HOWTOPLAY_4_DESCRIPTION] Place in the top 5 of your leaderboard for a promotion into a more competitive league with better rewards, and more challenging opponents.

So it's just a level with scoring in form of a time attack against others.