diff --git a/riven/src/consts/game_mode.rs b/riven/src/consts/game_mode.rs
index 96ea27b..01c0618 100644
--- a/riven/src/consts/game_mode.rs
+++ b/riven/src/consts/game_mode.rs
@@ -28,6 +28,8 @@ pub enum GameMode {
     ASCENSION,
     /// Blood Hunt Assassin games
     ASSASSINATE,
+    /// 2v2v2v2
+    CHERRY,
     /// Classic Summoner's Rift and Twisted Treeline games
     CLASSIC,
     /// Dark Star: Singularity games
diff --git a/riven/src/consts/team.rs b/riven/src/consts/team.rs
index 5484a10..0d298b1 100644
--- a/riven/src/consts/team.rs
+++ b/riven/src/consts/team.rs
@@ -18,6 +18,9 @@ use serde_repr::{Deserialize_repr, Serialize_repr};
 )]
 #[repr(u16)]
 pub enum Team {
+    /// Team ID zero for 2v2v2v2 Arena `CHERRY` game mode. (TODO: SUBJECT TO CHANGE?)
+    ZERO = 0,
+
     /// Blue team (bottom left on Summoner's Rift).
     BLUE = 100,
     /// Red team (top right on Summoner's Rift).
diff --git a/riven/tests/tests_asia_jp.rs b/riven/tests/tests_asia_jp.rs
index 750e0a1..c059a20 100644
--- a/riven/tests/tests_asia_jp.rs
+++ b/riven/tests/tests_asia_jp.rs
@@ -37,6 +37,10 @@ static MATCHES: &[&str] = &[
     // New fields:
     // `match-v5.ParticipantDto.playerAugment[1234],playerSubteamId,subteamPlacement`
     "JP1_400700181",
+    // New field: `match-v5.ParticipantDto.placement`
+    "JP1_405073638",
+    // New ARENA 2v2v2v2 game mode, broken `subteamPlacement`
+    "KR_6604607115",
 ];
 
 async_tests! {
diff --git a/riven/tests/tests_europe.rs b/riven/tests/tests_europe.rs
index ddf707f..610bac9 100644
--- a/riven/tests/tests_europe.rs
+++ b/riven/tests/tests_europe.rs
@@ -17,6 +17,8 @@ static MATCHES: &[&str] = &[
     "EUW1_5097963383",
     "EUW1_5102203800", // https://github.com/MingweiSamuel/Riven/issues/36
     "EUW1_5765650307", // https://gist.github.com/MingweiSamuel/d5f9dc40cc5a80a9255e488f27705c56?permalink_comment_id=4088256#gistcomment-4088256
+    // New ARENA 2v2v2v2 game mode
+    "EUW1_6511808246", // https://github.com/MingweiSamuel/Camille/issues/99
 ];
 
 async_tests! {