diff --git a/draw.go b/draw.go
index 1f12319..a0eecae 100644
--- a/draw.go
+++ b/draw.go
@@ -2791,6 +2791,7 @@ type setting int
 const (
 	setKeys setting = iota
 	invertLOS
+	toggleTiles
 )
 
 func (s setting) String() (text string) {
@@ -2799,6 +2800,8 @@ func (s setting) String() (text string) {
 		text = "Change key bindings"
 	case invertLOS:
 		text = "Toggle dark/light LOS"
+	case toggleTiles:
+		text = "Toggle Tiles/Ascii display"
 	}
 	return text
 }
@@ -2860,6 +2863,8 @@ func (ui *termui) HandleSettingAction(g *game) error {
 		} else {
 			ApplyLightLOS()
 		}
+	case toggleTiles:
+		ui.ApplyToggleTiles()
 	}
 	return nil
 }
diff --git a/encoding.go b/encoding.go
index 8109394..822cfac 100644
--- a/encoding.go
+++ b/encoding.go
@@ -30,6 +30,7 @@ type config struct {
 	RuneNormalModeKeys map[rune]keyAction
 	RuneTargetModeKeys map[rune]keyAction
 	DarkLOS            bool
+	Tiles              bool
 	Version            string
 }
 
diff --git a/js.go b/js.go
index 72b2803..cdfeddf 100644
--- a/js.go
+++ b/js.go
@@ -14,7 +14,6 @@ import (
 	"unicode/utf8"
 
 	"github.com/gopherjs/gopherwasm/js"
-	//"github.com/gopherjs/gopherjs/js"
 )
 
 func main() {
@@ -26,6 +25,7 @@ func main() {
 	defer tui.Close()
 
 	ApplyDefaultKeyBindings()
+	gameConfig.Tiles = true
 	tui.PostInit()
 	LinkColors()
 
@@ -201,10 +201,6 @@ func (ui *termui) Init() error {
 				ch <- jsInput{mouse: true, mouseX: x, mouseY: y, button: -1}
 			}
 		}))
-	//js.Global().Get("document").Call("addEventListener", "mousemove", func(e js.Value) {
-	//x, y := ui.GetMousePos(e)
-	//ui.mouse = position{x, y}
-	//})
 	ui.ResetCells()
 	ui.backBuffer = make([]UICell, UIWidth*UIHeight)
 	ui.InitElements()
@@ -333,6 +329,7 @@ func (ui *termui) PostInit() {
 	ui.HideCursor()
 	//MenuCols[MenuOther] = MenuCols[MenuView]
 	//MenuCols[MenuView] = [2]int{-1, -1}
+	settingsActions = append(settingsActions, toggleTiles)
 }
 
 func (ui *termui) Clear() {
diff --git a/jscanvas.go b/jscanvas.go
index 7448db7..da93cd4 100644
--- a/jscanvas.go
+++ b/jscanvas.go
@@ -24,8 +24,6 @@ type termui struct {
 	mousepos   position
 }
 
-var Tiles bool = true
-
 func (ui *termui) InitElements() error {
 	canvas := js.Global().Get("document").Call("getElementById", "gamecanvas")
 	canvas.Call("addEventListener", "contextmenu", js.NewEventCallback(js.PreventDefault, func(e js.Value) {
@@ -33,33 +31,26 @@ func (ui *termui) InitElements() error {
 	canvas.Call("setAttribute", "tabindex", "1")
 	ui.ctx = canvas.Call("getContext", "2d")
 	ui.ctx.Set("imageSmoothingEnabled", false)
-	//if Tiles {
-	//ui.ctx.Set("font", "22px monospace")
-	//} else {
-	//ui.ctx.Set("font", "18px monospace")
-	//}
-	//if Tiles {
 	ui.width = 16
 	ui.height = 24
 	canvas.Set("height", 24*UIHeight)
 	canvas.Set("width", 16*UIWidth)
-	//} else {
-	//ui.height = 22
-	//mesure := ui.ctx.Call("measureText", "W")
-	//ui.width = mesure.Get("width").Int() + 1
-	//canvas.Set("height", ui.height*UIHeight)
-	//canvas.Set("width", ui.width*UIWidth)
-	//}
-	// seems to be needed again
-	//if Tiles {
-	//ui.ctx.Set("font", "22px monospace")
-	//} else {
-	//ui.ctx.Set("font", "18px monospace")
-	//}
 	ui.cache = make(map[UICell]js.Value)
 	return nil
 }
 
+func (ui *termui) ApplyToggleTiles() {
+	gameConfig.Tiles = !gameConfig.Tiles
+	for c, _ := range ui.cache {
+		if c.inMap {
+			delete(ui.cache, c)
+		}
+	}
+	for i := 0; i < len(ui.backBuffer); i++ {
+		ui.backBuffer[i] = UICell{}
+	}
+}
+
 var TileImgs map[string][]byte
 
 var MapNames = map[rune]string{
@@ -152,7 +143,7 @@ var LetterNames = map[rune]string{
 
 func getImage(cell UICell) []byte {
 	var pngImg []byte
-	if cell.inMap && Tiles {
+	if cell.inMap && gameConfig.Tiles {
 		pngImg = TileImgs["map-notile"]
 		if im, ok := TileImgs["map-"+string(cell.r)]; ok {
 			pngImg = im
@@ -200,7 +191,7 @@ func (ui *termui) Draw(cell UICell, x, y int) {
 		canvas = cv
 	} else {
 		canvas = js.Global().Get("document").Call("createElement", "canvas")
-		//if Tiles {
+		//if gameConfig.Tiles {
 		canvas.Set("width", 16)
 		canvas.Set("height", 24)
 		ctx := canvas.Call("getContext", "2d")
@@ -211,21 +202,6 @@ func (ui *termui) Draw(cell UICell, x, y int) {
 		imgdata := js.Global().Get("ImageData").New(ca, 16, 24)
 		ctx.Call("putImageData", imgdata, 0, 0)
 		ta.Release()
-		//} else {
-		//canvas.Set("width", ui.width)
-		//canvas.Set("height", ui.height)
-		//ctx := canvas.Call("getContext", "2d")
-		//ctx.Set("imageSmoothingEnabled", false)
-		//ctx.Set("font", ui.ctx.Get("font"))
-		//ctx.Set("fillStyle", cell.bg.String())
-		//ctx.Call("fillRect", 0, 0, ui.width, ui.height)
-		//ctx.Set("fillStyle", cell.fg.String())
-		////if Tiles {
-		////ctx.Call("fillText", string(cell.r), 0, 18)
-		////} else {
-		//ctx.Call("fillText", string(cell.r), 0, 18)
-		////}
-		//}
 		ui.cache[cell] = canvas
 	}
 	ui.ctx.Call("drawImage", canvas, x*ui.width, ui.height*y)
diff --git a/save.go b/save.go
index 4405877..34cddc4 100644
--- a/save.go
+++ b/save.go
@@ -144,3 +144,6 @@ func (g *game) RemoveDataFile(file string) error {
 	}
 	return nil
 }
+
+func (ui *termui) ApplyToggleTiles() {
+}