diff --git a/src/npc/mimiga_village.rs b/src/npc/mimiga_village.rs
index dad34e1..6031f73 100644
--- a/src/npc/mimiga_village.rs
+++ b/src/npc/mimiga_village.rs
@@ -1,3 +1,5 @@
+use std::cmp::Ordering;
+
 use num_traits::clamp;
 
 use crate::common::Direction;
@@ -16,11 +18,11 @@ impl NPC {
         }
 
         if self.action_num == 1 {
-            if self.target_y < self.y {
-                self.vel_y -= 8;
-            } else if self.target_y > self.y {
-                self.vel_y += 8;
-            }
+            self.vel_y += match self.target_y.cmp(&self.y) {
+                Ordering::Less => { -8 }
+                Ordering::Equal => { 0 }
+                Ordering::Greater => { 8 }
+            };
 
             self.vel_y = clamp(self.vel_y, -0x100, 0x100);
         }
diff --git a/src/scene/game_scene.rs b/src/scene/game_scene.rs
index 2e88dfe..f66beea 100644
--- a/src/scene/game_scene.rs
+++ b/src/scene/game_scene.rs
@@ -754,11 +754,13 @@ impl Scene for GameScene {
             }
 
             if state.key_trigger.weapon_next() {
+                state.sound_manager.play_sfx(4);
                 self.inventory.next_weapon();
                 self.weapon_x_pos = 32;
             }
 
             if state.key_trigger.weapon_prev() {
+                state.sound_manager.play_sfx(4);
                 self.inventory.prev_weapon();
                 self.weapon_x_pos = 0;
             }
diff --git a/src/sound/mod.rs b/src/sound/mod.rs
index 42f11b4..19e4200 100644
--- a/src/sound/mod.rs
+++ b/src/sound/mod.rs
@@ -293,6 +293,6 @@ fn run<T>(rx: Receiver<PlaybackMessage>, bank: SoundBank,
     stream.play()?;
 
     loop {
-        std::thread::sleep(Duration::from_millis(1));
+        std::thread::sleep(Duration::from_millis(10));
     }
 }
diff --git a/src/sound/pixtone.rs b/src/sound/pixtone.rs
index e479502..cb36d9e 100644
--- a/src/sound/pixtone.rs
+++ b/src/sound/pixtone.rs
@@ -277,13 +277,13 @@ impl PixTonePlayback {
                         break;
                     } else {
                         let pos = state.1 as usize;
-                        //let s1 = (sample[pos] as f32) / 32768.0;
-                        //let s2 = (sample[clamp(pos + 1, 0, sample.len() - 1)] as f32) / 32768.0;
-                        //let s3 = (sample[clamp(pos + 2, 0, sample.len() - 1)] as f32) / 32768.0;
-                        //let s4 = (sample[pos.saturating_sub(1)] as f32) / 32768.0;
+                        let s1 = (sample[pos] as f32) / 32768.0;
+                        let s2 = (sample[clamp(pos + 1, 0, sample.len() - 1)] as f32) / 32768.0;
+                        let s3 = (sample[clamp(pos + 2, 0, sample.len() - 1)] as f32) / 32768.0;
+                        let s4 = (sample[pos.saturating_sub(1)] as f32) / 32768.0;
 
-                        //let s = cubic_interp(s1, s2, s4, s3, state.1.fract()) * 32768.0;
-                        let s = sample[pos] as f32;
+                        let s = cubic_interp(s1, s2, s4, s3, state.1.fract()) * 32768.0;
+                        // let s = sample[pos] as f32;
                         let sam = (*result ^ 0x8000) as i16;
                         *result = sam.saturating_add(s as i16) as u16 ^ 0x8000;