diff --git a/assets/audiobank.go b/assets/audiobank.go
index 5c6d736..33c51e6 100644
--- a/assets/audiobank.go
+++ b/assets/audiobank.go
@@ -37,6 +37,10 @@ var (
 	Magic []byte
 	//go:embed survive.wav
 	Survive []byte
+	//go:embed pausein.wav
+	PauseIn []byte
+	//go:embed pauseout.wav
+	PauseOut []byte
 )
 
 func LoadSounds() {
diff --git a/assets/magic.wav b/assets/magic.wav
index 0de9b99..6c32718 100644
Binary files a/assets/magic.wav and b/assets/magic.wav differ
diff --git a/screenmanager/manager.go b/screenmanager/manager.go
index ae5562c..b3439d2 100644
--- a/screenmanager/manager.go
+++ b/screenmanager/manager.go
@@ -26,7 +26,7 @@ func NewManager() Manager {
 	return Manager{
 		Info: gamedata.GameInfo{
 			Name:    "survive",
-			Version: "0.20",
+			Version: "0.22",
 			Dimensions: gamedata.Area{
 				Width:  defaultWidth,
 				Height: defaultHeight,
diff --git a/screens/game.go b/screens/game.go
index 67cb897..6674885 100644
--- a/screens/game.go
+++ b/screens/game.go
@@ -44,17 +44,11 @@ type Game struct {
 	projectiles      map[int]*elements.Projectile
 	explosion        *elements.Explosion
 	audioplayer      *audio.Player
-	sfxplayer        []*audio.Player
 
 	score   int
 	counter int
 	timer   int
 	targets []*elements.Mover
-
-	//gamepadIDsBuf []ebiten.GamepadID
-	//gamepadIDs    map[ebiten.GamepadID]struct{}
-	//axes           map[ebiten.GamepadID][]string
-	//pressedButtons map[ebiten.GamepadID][]string
 }
 
 var (
@@ -72,21 +66,9 @@ func NewGame() *Game {
 func (g *Game) Initialize() {
 
 	if !g.musicInitialized {
-		//s, _ := wav.DecodeWithSampleRate(sampleRate)
-		//d, _ := wav.DecodeWithSampleRate(sampleRate, bytes.NewReader(loop_wav))
-
 		s := audio.NewInfiniteLoop(assets.SoundBank[assets.MainLoop], assets.SoundBank[assets.MainLoop].Length())
-
-		/*
-
-				reader := bytes.NewReader(loop_wav)
-
-			s := audio.NewInfiniteLoopF32(reader, reader.Length())
-		*/
 		g.audioplayer, _ = audioContext.NewPlayer(s)
-
 		g.audioplayer.Play()
-
 		g.musicInitialized = true
 	}
 
@@ -127,23 +109,6 @@ func (g *Game) Initialize() {
 }
 
 func (g *Game) Update() error {
-	/*
-		if g.gamepadIDs == nil {
-			g.gamepadIDs = map[ebiten.GamepadID]struct{}{}
-		}
-
-		g.gamepadIDsBuf = inpututil.AppendJustConnectedGamepadIDs(g.gamepadIDsBuf[:0])
-		for _, id := range g.gamepadIDsBuf {
-			log.Printf("gamepad connected: id: %d, SDL ID: %s", id, ebiten.GamepadSDLID(id))
-			g.gamepadIDs[id] = struct{}{}
-		}
-		for id := range g.gamepadIDs {
-			if inpututil.IsGamepadJustDisconnected(id) {
-				log.Printf("gamepad disconnected: id: %d", id)
-				delete(g.gamepadIDs, id)
-			}
-		}*/
-
 	if !g.initialized || g.reset {
 		g.Initialize()
 	} else {
@@ -171,7 +136,6 @@ func (g *Game) Draw(screen *ebiten.Image) {
 		}
 
 		op.GeoM.Translate(-MOVER_WIDTH/2, -MOVER_HEIGHT/2)
-		//op.GeoM.Rotate(g.hero.Angle)
 		op.GeoM.Translate(g.hero.Pos.X, g.hero.Pos.Y)
 		screen.DrawImage(g.hero.Sprite, op)
 
@@ -215,9 +179,7 @@ func (g *Game) Draw(screen *ebiten.Image) {
 
 		g.projectileMask.Clear()
 
-		//ebitenutil.DrawCircle()
 		for _, p := range g.projectiles {
-			//vector.DrawFilledCircle(screen, float32(p.Pos.X), float32(p.Pos.Y), 3, color.White, true)
 			vector.DrawFilledCircle(g.projectileMask, float32(p.Pos.X), float32(p.Pos.Y), 3, color.White, true)
 		}
 
@@ -225,9 +187,6 @@ func (g *Game) Draw(screen *ebiten.Image) {
 
 		vector.StrokeCircle(screen, float32(g.explosion.Origin.X), float32(g.explosion.Origin.Y), float32(g.explosion.Radius), 3, color.White, true)
 
-		/*for _, gamepad 	ebiten.StandardGamepadAxisValue(id, ebiten.StandardGamepadAxisRightStickHorizontal),
-		ebiten.StandardGamepadAxisValue(id, ebiten.StandardGamepadAxisRightStickVertical))*/
-
 		s := fmt.Sprintf("%02.3f", g.runtime)
 		if !g.gameover {
 			text.Draw(screen, "TIME: "+s, fonts.SurviveFont.Arcade, 640/2-250, 25, color.White)
@@ -356,12 +315,10 @@ func (g *Game) HandlePulseWaveUpdate() {
 func (g *Game) UpdateProjectiles() {
 	for k, p := range g.projectiles {
 
-		//for i := 0; i < len(g.projectiles); i++ {
-		//	g.projectiles[i].Update()
 		p.Update()
 
-		//if g.projectiles[i].Pos.X < 5 || g.projectiles[i].Pos.X > 635 || g.projectiles[i].Pos.Y < 5 || g.projectiles[i].Pos.Y > 475 {
-		if p.Pos.X < 5 || p.Pos.X > 635 || p.Pos.Y < 5 || p.Pos.Y > 475 {
+		//cleanup projectiles at boundaries
+		if p.Pos.X < -640/2 || p.Pos.X > 1.5*640 || p.Pos.Y < -480/2 || p.Pos.Y > 1.5*480 {
 			p.Velocity = 0
 			delete(g.projectiles, k)
 		}
@@ -501,6 +458,13 @@ func (g *Game) HandleInput() {
 			g.reset = true
 		} else {
 			g.Paused = !g.Paused
+			var player *audio.Player
+			if g.Paused {
+				player = audioContext.NewPlayerFromBytes(assets.PauseIn)
+			} else {
+				player = audioContext.NewPlayerFromBytes(assets.PauseOut)
+			}
+			player.Play()
 		}
 	}
 
diff --git a/screens/start.go b/screens/start.go
index 7edcb43..3e43736 100644
--- a/screens/start.go
+++ b/screens/start.go
@@ -8,6 +8,7 @@ import (
 	"mover/gamedata"
 
 	"github.com/hajimehoshi/ebiten/v2"
+	"github.com/hajimehoshi/ebiten/v2/audio"
 	"github.com/hajimehoshi/ebiten/v2/inpututil"
 	"github.com/hajimehoshi/ebiten/v2/text"
 )
@@ -20,6 +21,7 @@ type StartScreen struct {
 	targetreached bool
 	audioplayed   bool
 	cycle         int
+	audioplayer   *audio.Player
 }
 
 func NewStartScreen() *StartScreen {
@@ -39,11 +41,14 @@ func (s *StartScreen) Update() error {
 	if inpututil.IsKeyJustPressed(ebiten.KeyEnter) ||
 		ebiten.IsStandardGamepadButtonPressed(0, ebiten.StandardGamepadButtonCenterRight) {
 		s.eHandler[EventCompleted]()
+		if s.audioplayer.IsPlaying() {
+			s.audioplayer.Close()
+		}
 	}
 
 	if !s.audioplayed {
-		player := audioContext.NewPlayerFromBytes(assets.Survive)
-		player.Play()
+		s.audioplayer = audioContext.NewPlayerFromBytes(assets.Survive)
+		s.audioplayer.Play()
 		s.audioplayed = true
 	}