Index: main.c
==================================================================
--- main.c
+++ main.c
@@ -250,13 +250,13 @@
       if(z==0xFF) break;
       if(z&0x20) x=*p++;
       if(z&0x10) y=*p++;
       if(z&0x40) x++;
       if(!x || !y || x>pfwidth || y>pfheight) goto bad2;
+      n=z&0x70?0:1;
       if(z&0x80) {
         // MRU
-        n=playfield[x+y*64-65]==VOIDLINK?0:1;
         if(mru[n]==VOIDLINK) goto bad1;
         o=objalloc(objects[mru[n]]->class);
         if(o==VOIDLINK) goto bad3;
         objects[o]->image=objects[mru[n]]->image;
         objects[o]->misc1=objects[mru[n]]->misc1;
@@ -267,12 +267,10 @@
         objects[o]->y=y;
         pflink(o);
         n=z&15;
       } else {
         // Not MRU
-        n=playfield[x+y*64-65];
-        n=n==VOIDLINK?0:objects[n]->down==VOIDLINK?1:2;
         i=*p++;
         i|=*p++<<8;
         o=objalloc(i&0x3FFF);
         if(o==VOIDLINK) goto bad3;
         if(n!=2) mru[n]=o;

Index: mbtofhm.c
==================================================================
--- mbtofhm.c
+++ mbtofhm.c
@@ -944,10 +944,18 @@
   mru[0x04]=mru[0x14]=255;
   n=fgetc(stdin);
   n|=fgetc(stdin)<<8;
   x=q=r=0;
   y=1;
+  // Hero Mesh level format for objects:
+  //   0-1    Class
+  //   2-3    CurImage
+  //   4      LastDir
+  //   5      Misc Types
+  //   6-7    X
+  //   8-9    Y
+  //   10-15  Misc1,Misc2,Misc3
   // Free Hero Mesh level format for objects:
   //   * bit flags (or 0xFF for end):
   //     bit7 = MRU (omit everything but position)
   //     bit6 = Next position
   //     bit5 = New X position
@@ -971,11 +979,11 @@
     mru[0x06]=mru[0x16]=buf[6];
     mru[0x08]=mru[0x18]=buf[8];
     i=0;
     if(buf[6]==x+1) i|=0x40; else if(buf[6]!=x) i|=0x20;
     if(buf[8]!=y) i|=0x10;
-    if(x==buf[6] && y==buf[8]) q+=16; else q=0;
+    q=i&0x70?0:16;
     if(q<32 && !memcmp(mru+q,buf,16)) {
       i|=0x80;
     } else {
       i|=buf[4]&7;
       if(buf[5] || memcmp(buf+10,"\0\0\0\0\0\0",6)) i|=0x08;