diff --git a/builder/build.go b/builder/build.go
index 10f99e3..eaef1c2 100644
--- a/builder/build.go
+++ b/builder/build.go
@@ -17,7 +17,6 @@ import (
   . "lcthw.dev/go/ttarpit/debug"
 )
 
-type ErrorHandler func (data.ErrInfo) 
 
 const (
   START=0
@@ -29,16 +28,19 @@ const (
 type Builder struct {
   settings config.Config 
   OnError ErrorHandler
+  OnPass PassHandler
 
   BuildState int
   HadErrors bool
 }
 
-func New(settings config.Config, handler ErrorHandler) (*Builder) {
+type ErrorHandler func (data.ErrInfo) 
+type PassHandler func () 
+
+func New(settings config.Config) (*Builder) {
   builder := new(Builder)
 
   builder.settings = settings
-  builder.OnError = handler
 
   return builder
 }
@@ -65,6 +67,8 @@ func (build *Builder) ParseErrInfo(line string, reg *regexp.Regexp) (data.ErrInf
 
   info.Message = matches[reg.SubexpIndex("Message")]
 
+  info.Raw = matches[0]
+
   return info, true
 }
 
@@ -90,6 +94,13 @@ func (build *Builder) LaunchLogger(in io.Reader, out io.Writer, err error) {
   }()
 }
 
+func (build *Builder) SetOnError(errhandler ErrorHandler) {
+  build.OnError = errhandler
+}
+
+func (build *Builder) SetOnPass(passhandler PassHandler) {
+  build.OnPass = passhandler
+}
 
 func (build *Builder) LaunchProcess(proc *config.Process) {
   proc.ExecCmd = exec.Command(proc.Command, proc.Args...)
@@ -145,6 +156,7 @@ func (build *Builder) EndBuild() {
     build.BuildState = FAILED
   } else {
     build.BuildState = PASSED
+    build.OnPass()
   }
 }
 
diff --git a/data/types.go b/data/types.go
index 261c4a9..e581293 100644
--- a/data/types.go
+++ b/data/types.go
@@ -6,5 +6,6 @@ type ErrInfo struct {
   Col int
   ErrType string
   Message string
+  Raw string
 }
 
diff --git a/game/engine.go b/game/engine.go
index 980877b..2f19221 100644
--- a/game/engine.go
+++ b/game/engine.go
@@ -3,6 +3,7 @@ package game
 import (
   "lcthw.dev/go/ttarpit/config"
   "lcthw.dev/go/ttarpit/data"
+  "lcthw.dev/go/ttarpit/builder"
   . "lcthw.dev/go/ttarpit/debug"
   "time"
 )
@@ -14,6 +15,7 @@ type Game struct {
   Errors int
   StartTime time.Time
   EndTime time.Time
+  ErrorLog []data.ErrInfo
 }
 
 func New(settings config.Config) *Game {
@@ -33,11 +35,17 @@ func New(settings config.Config) *Game {
   return game
 }
 
-func (game *Game) TakeHit(errinfo data.ErrInfo) {
+func (game *Game) BuildPass() {
+  game.ErrorLog = game.ErrorLog[:0]
+}
+
+func (game *Game) TakeHit(build *builder.Builder, errinfo data.ErrInfo) {
   Log.Println("!!!!!!!!!!!!!!!!!", errinfo)
   game.Errors++
   game.HP--
 
+  game.ErrorLog = append(game.ErrorLog, errinfo)
+
   Log.Println("============== PROCESS EXIT")
   Log.Printf("==== HP: %d  Errors: %d =====\n",
     game.HP, game.Errors)
diff --git a/main.go b/main.go
index a1d40ba..d549e66 100644
--- a/main.go
+++ b/main.go
@@ -15,8 +15,14 @@ func main() {
 
   g := game.New(settings)
 
-  build := builder.New(settings, func (errinfo data.ErrInfo) {
-    g.TakeHit(errinfo)
+  build := builder.New(settings)
+
+  build.SetOnError(func (errinfo data.ErrInfo) {
+    g.TakeHit(build, errinfo)
+  })
+
+  build.SetOnPass(func () {
+    g.BuildPass()
   })
 
   go build.WatchDir()
diff --git a/ui.go b/ui.go
index b08cdc3..c048613 100644
--- a/ui.go
+++ b/ui.go
@@ -64,7 +64,10 @@ func (ui *UI) Render(data *game.Game, build *builder.Builder) {
     ui.StyleText(0, 5, "Build: FAILED", red)
   }
 
-  // show the errors
+  for i := len(data.ErrorLog) - 1 ; i >= 0; i-- {
+    errinfo := data.ErrorLog[i]
+    ui.DrawText(0, 8 + (i % 10), errinfo.Raw)
+  }
 
   ui.Screen.Show()
 }