--- a/06/ecl.xhtml
+++ b/06/ecl.xhtml
@@ -29,7 +29,7 @@ typedef struct {
     uint16_t <a href="ecl.xml">opcode</a>;
     uint16_t size; // Never less than 0xc.
     uint16_t rank_mask; // the first byte is always 0xff, and the second the mask of the ranks to which the instruction applies, 1 for easy, 8 for lunatic.
-    uint16_t param_mask; // If the last param is a stack, the number of bytes at 0 indicates the number of items in the stack.
+    uint16_t param_mask; // If the last param is a stack, the number of bits at 0 indicates the number of items in the stack.
     unsigned char params[size-0xc];
 } thecl06_sub_t;
 </pre>
@@ -60,9 +60,12 @@ typedef struct {
     float y;
     float z; // Unused, always 0.
     int16_t resistance; // From 0 to 0x7fff; greater is equal to 0.
+    int16_t object_dropped; // Between -2 and 2.
+			    // 0000 to 00ff: power
+			    // ff00 to ffff: random
+			    // other: nothing
     uint16_t unknown1;
-    uint16_t unknown2;
-    uint16_t unknown3;
+    uint16_t unknown2; // 0 for normal enemies; 1 for mid-boss; 3 or 4 for boss.
 } thecl_enemy_t;
 </pre>