diff --git a/data/battle_param/ep1_rare_monster.toml b/data/battle_param/ep1_rare_monster.toml
new file mode 100644
index 0000000..b7e62c4
--- /dev/null
+++ b/data/battle_param/ep1_rare_monster.toml
@@ -0,0 +1,15 @@
+# 1/100 = 0.01
+# 1/256 = 0.00390625
+# 1/512 = 0.001953125
+
+[[Hildebear]]
+rate = 0.01
+
+[[RagRappy]]
+rate = 0.01
+
+[[PoisonLily]]
+rate = 0.01
+
+[[PofuillySlime]]
+rate = 0.01
\ No newline at end of file
diff --git a/data/battle_param/ep2_rare_monster.toml b/data/battle_param/ep2_rare_monster.toml
new file mode 100644
index 0000000..2b6f916
--- /dev/null
+++ b/data/battle_param/ep2_rare_monster.toml
@@ -0,0 +1,13 @@
+# 1/100 = 0.01
+# 1/256 = 0.00390625
+# 1/512 = 0.001953125
+
+[[Hildebear]]
+rate = 0.01
+
+[[RagRappy]]
+rate = 0.01
+
+[[PoisonLily]]
+rate = 0.01
+
diff --git a/data/battle_param/ep4_rare_monster.toml b/data/battle_param/ep4_rare_monster.toml
new file mode 100644
index 0000000..9a4b244
--- /dev/null
+++ b/data/battle_param/ep4_rare_monster.toml
@@ -0,0 +1,27 @@
+# 1/100 = 0.01
+# 1/256 = 0.00390625
+# 1/512 = 0.001953125
+
+[[SandRappyCrater]]
+rate = 0.01
+
+[[ZuCrater]]
+rate = 0.01
+
+[[Dorphon]]
+rate = 0.01
+
+[[SandRappyDesert]]
+rate = 0.01
+
+[[ZuDesert]]
+rate = 0.01
+
+[[MerissaA]]
+rate = 0.01
+
+[[Shambertin]]
+rate = 0.1
+
+[[SaintMillion]]
+rate = 0.1
\ No newline at end of file
diff --git a/data/battle_param/global_rare_monster.toml b/data/battle_param/global_rare_monster.toml
new file mode 100644
index 0000000..8a3ca93
--- /dev/null
+++ b/data/battle_param/global_rare_monster.toml
@@ -0,0 +1,11 @@
+# 1/100 = 0.01
+# 1/256 = 0.00390625
+# 1/512 = 0.001953125
+
+# Everything that isn't Kondrieu
+[[Grunt]]
+rate = 0.01
+
+# Kondrieu
+[[Boss]]
+rate = 0.1
\ No newline at end of file
diff --git a/src/ship/map/maps.rs b/src/ship/map/maps.rs
index 7f18e50..866ae12 100644
--- a/src/ship/map/maps.rs
+++ b/src/ship/map/maps.rs
@@ -73,7 +73,7 @@ fn parse_enemy(episode: &Episode, map_area: &MapArea, raw_enemy: RawMapEnemy) ->
                 },
                 MonsterType::PouillySlime => {
                     // guaranteed rare slime already pushed
-                    // roll for the other 3 copies
+                    // roll for the other 3 (4?) copies
                     for _ in 0..4 {
                         if rand::thread_rng().gen_range(0, 100) < 11 {
                             monsters.push(Some(MapEnemy::new(MonsterType::PouillySlime, monster.map_area).set_shiny()))