diff --git a/core/vip.c b/core/vip.c
index f2295f3..e722873 100644
--- a/core/vip.c
+++ b/core/vip.c
@@ -72,7 +72,7 @@ typedef struct {
     int32_t  bottom, top; /* Window bounds */
     int32_t  gx, gp, gy;  /* World screen position */
     int32_t  mx, mp, my;  /* Background scroll */
-    int32_t  over;        /* Overplane flag */
+    uint8_t *over;        /* Overplane character */
     uint32_t params;      /* Line parameters address */
     int32_t  scx, scy;    /* Background dimensions */
     int32_t  w, h;        /* Window size */
@@ -682,7 +682,8 @@ static int vipParseWorld(VB*sim,uint8_t*world,uint16_t bits,WorldAttribs*attr){
     attr->bg   = (uint8_t *) BG_TEMPLATES[bits >> 8 & 15];
     attr->gx   = SignExtend(busReadBuffer(world + 2, VB_U16), 10);
     attr->gp   = SignExtend(busReadBuffer(world + 4, VB_U16), 10);
-    attr->over = bits >>  7 & 1;
+    attr->over = (bits & 0x0080) == 0 ? NULL :
+        &sim->vip.ram[0x00020000 | busReadBuffer(world + 10, VB_U16) << 1];
     attr->scx  = bits >> 10 & 3;
     attr->scy  = bits >>  8 & 3;
     attr->bgw  = (1 << attr->scx) - 1;
@@ -886,10 +887,10 @@ static void vipDrawWorld(VB *sim, uint8_t *world, uint16_t bits) {
                     bx < 0 || bx > wttr.bgw ||
                     by < 0 || by > wttr.bgh
                 ) {
-                    if (wttr.over)
-                        continue; /* TODO: Research overplane */
-                    bx &= wttr.bgw;
-                    by &= wttr.bgh;
+                    if (wttr.over == NULL) {
+                        bx &= wttr.bgw;
+                        by &= wttr.bgh;
+                    } else cell = wttr.over;
                 }
 
                 /* Locate the cell in the BG map */