diff --git a/source/engine/engine.c b/source/engine/engine.c
index 6aa1371..4e61a44 100644
--- a/source/engine/engine.c
+++ b/source/engine/engine.c
@@ -64,5 +64,5 @@ void engine_init()
     phys2d_init();
 
     YughInfo("Starting sound ...");
-//    sound_init();
+    sound_init();
 }
diff --git a/source/engine/ffi.c b/source/engine/ffi.c
index d0d8dce..5814ec5 100644
--- a/source/engine/ffi.c
+++ b/source/engine/ffi.c
@@ -110,7 +110,12 @@ duk_ret_t duk_cmd(duk_context *duk) {
          break;
 
        case 12:
-         anim2d_delete(duk_to_int(duk, 1));
+         //anim2d_delete(duk_to_int(duk, 1));
+         break;
+
+
+       case 13:
+         play_song(duk_to_string(duk, 1), duk_to_string(duk, 2));
          break;
 
     }
@@ -149,7 +154,6 @@ duk_ret_t duk_register_collide(duk_context *duk) {
     int go = duk_get_int(duk, 3);
 
     struct callee c = {fn, obj};
-    YughInfo("Registering ...");
 
     phys2d_add_handler_type(0, go, c);
 
@@ -223,10 +227,13 @@ duk_ret_t duk_make_gameobject(duk_context *duk) {
     return 1;
 }
 
-duk_ret_t duk_loginfo(duk_context *duk) {
-    const char *s = duk_to_string(duk,0);
+duk_ret_t duk_yughlog(duk_context *duk) {
+    int cmd = duk_to_int(duk, 0);
+    const char *s = duk_to_string(duk,1);
+    const char *f = duk_to_string(duk, 2);
+    int line = duk_to_int(duk, 3);
 
-    YughInfo("%s", s);
+    mYughLog(1, cmd, line, f, s);
 
     return 0;
 }
@@ -342,7 +349,7 @@ duk_ret_t duk_make_anim2d(duk_context *duk) {
   const char *path = duk_to_string(duk, 1);
   cpVect pos = duk2vec2(duk, 2);
 
-
+  return 0;
 }
 
 duk_ret_t duk_make_box2d(duk_context *duk) {
@@ -421,13 +428,11 @@ duk_ret_t duk_timer_cmd(duk_context *duk) {
 
 void ffi_load()
 {
-    DUK_FUNC(loginfo, 1);
+    DUK_FUNC(yughlog, 4);
     DUK_FUNC(make_gameobject, 7);
     DUK_FUNC(set_body, 3);
     DUK_FUNC(q_body, 2);
 
-    DUK_FUNC(sprite, 3);
-
     DUK_FUNC(sys_cmd, 1);
     DUK_FUNC(win_make, 3);
 
@@ -435,7 +440,7 @@ void ffi_load()
     DUK_FUNC(make_anim2d, 3);
     DUK_FUNC(make_box2d, 3);
     DUK_FUNC(make_circle2d, 3);
-    DUK_FUNC(cmd, 2);
+    DUK_FUNC(cmd, DUK_VARARGS);
     DUK_FUNC(register, 3);
     DUK_FUNC(register_collide, 4);
 
diff --git a/source/engine/script.c b/source/engine/script.c
index c4c9cf8..937cdb7 100644
--- a/source/engine/script.c
+++ b/source/engine/script.c
@@ -57,6 +57,15 @@ time_t file_mod_secs(const char *file) {
     return attr.st_mtime;
 }
 
+void duk_run_err() {
+       duk_get_prop_string(duk, -1, "lineNumber");
+       duk_get_prop_string(duk, -2, "fileName");
+       duk_get_prop_string(duk, -3, "stack");
+       mYughLog(1, 2, duk_get_int(duk, -3), duk_safe_to_string(duk, -2), "%s\n%s", duk_safe_to_string(duk, -4), duk_safe_to_string(duk, -1));
+
+       duk_pop_3(duk);
+}
+
 int script_dofile(const char *file) {
     const char *script = slurp_text(file);
     if (!script) {
@@ -65,14 +74,18 @@ int script_dofile(const char *file) {
    }
    duk_push_string(duk, script);
    free(script);
-   if (duk_peval(duk) != 0) {
-       printf("ERROR: %s\n", duk_safe_to_string(duk, -1));
+   duk_push_string(duk, file);
+
+   if (duk_pcompile(duk, 0) != 0) {
+       duk_run_err();
        return 1;
    }
+
+   if (duk_pcall(duk, 0))
+       duk_run_err();
+
    duk_pop(duk);
 
-
-
    return file_mod_secs(file);
 }
 
@@ -105,15 +118,18 @@ void script_eval_w_env(const char *s, void *env) {
       return;
     }
     duk_push_string(duk, s);
-    duk_call_prop(duk, -2, 0);
-    duk_pop(duk);
-    duk_pop(duk);
+    if (duk_pcall_prop(duk, -2, 0))
+        duk_run_err();
+
+    duk_pop_2(duk);
 }
 
 void script_call_sym(void *sym)
 {
     duk_push_heapptr(duk, sym);
-    duk_call(duk, 0);
+    if (duk_pcall(duk, 0))
+        duk_run_err();
+
     duk_pop(duk);
 }
 
@@ -143,7 +159,10 @@ void register_physics(struct callee c) {
 void call_callee(struct callee c) {
     duk_push_heapptr(duk, c.fn);
     duk_push_heapptr(duk, c.obj);
-    duk_call_method(duk, 0);
+
+    if (duk_pcall_method(duk, 0))
+        duk_run_err();
+
     duk_pop(duk);
 }
 
@@ -151,7 +170,10 @@ void callee_dbl(struct callee c, double d) {
     duk_push_heapptr(duk, c.fn);
     duk_push_heapptr(duk, c.obj);
     duk_push_number(duk, d);
-    duk_call_method(duk, 1);
+
+    if (duk_pcall_method(duk, 1))
+        duk_run_err();
+
     duk_pop(duk);
 }
 
diff --git a/source/engine/sound.h b/source/engine/sound.h
index 095d235..50078da 100644
--- a/source/engine/sound.h
+++ b/source/engine/sound.h
@@ -73,13 +73,8 @@ void sound_pause(struct sound *s);
 void sound_resume(struct sound *s);
 void sound_stop(struct sound *s);
 
-
-
 struct music make_music(const char *ogg);
 
-
-
-
 const char *get_audio_driver();
 
 void soundstream_fillbuf(struct soundstream *stream, short *buf, int n);
diff --git a/source/engine/texture.c b/source/engine/texture.c
index d73e552..6d7d8e0 100644
--- a/source/engine/texture.c
+++ b/source/engine/texture.c
@@ -7,6 +7,7 @@
 #include "log.h"
 #include <math.h>
 #include "util.h"
+#include "parson.h"
 
 static struct {
     char *key;
@@ -22,7 +23,14 @@ struct Texture *texture_pullfromfile(const char *path)
 	return texhash[index].value;
 
     struct Texture *tex = calloc(1, sizeof(*tex));
-    tex->opts.sprite = 1;
+
+    /* Find texture's asset; otherwise load default asset */
+    JSON_Value *rv = json_parse_file("texture.asset");
+    JSON_Object *ro = json_value_get_object(rv);
+    tex->opts.sprite = json_object_get_boolean(ro, "sprite");
+    tex->opts.mips = json_object_get_boolean(ro, "mips");
+    json_value_free(rv);
+
     tex->opts.gamma = 0;
     tex->anim.ms = 1;
 
@@ -61,7 +69,8 @@ struct Texture *texture_pullfromfile(const char *path)
 
 	glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, tex->width, tex->height, 0, GL_RGBA, GL_UNSIGNED_BYTE, data);
 
-	glGenerateMipmap(GL_TEXTURE_2D);
+         if (tex->opts.mips)
+             glGenerateMipmap(GL_TEXTURE_2D);
 
 	if (tex->opts.sprite) {
 	    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
diff --git a/source/engine/texture.h b/source/engine/texture.h
index 45a874b..a0a45f1 100644
--- a/source/engine/texture.h
+++ b/source/engine/texture.h
@@ -48,6 +48,7 @@ struct TexAnim {
 
 struct TextureOptions {
     int sprite;
+    int mips;
     unsigned int gamma:1;
     int animation;
 };