--- a/src/th06/ecl_vm.rs
+++ b/src/th06/ecl_vm.rs
@@ -1,7 +1,7 @@
 //! ECL runner.
 
 use crate::th06::ecl::{Ecl, SubInstruction};
-use crate::th06::enemy::{Enemy, BulletAttributes};
+use crate::th06::enemy::{Enemy, BulletAttributes, Offset};
 use crate::util::prng::Prng;
 use std::cell::RefCell;
 use std::rc::Rc;
@@ -513,15 +513,17 @@ impl EclRunner {
             }
             // 47
             SubInstruction::SetSpeed(speed) => {
+                let speed = self.get_f32(speed);
                 let mut enemy = self.enemy.borrow_mut();
                 enemy.update_mode = 0;
-                enemy.speed = self.get_f32(speed);
+                enemy.speed = speed;
             }
             // 48
             SubInstruction::SetAcceleration(acceleration) => {
+                let acceleration = self.get_f32(acceleration);
                 let mut enemy = self.enemy.borrow_mut();
                 enemy.update_mode = 0;
-                enemy.acceleration = self.get_f32(acceleration);
+                enemy.acceleration = acceleration;
             }
             // 49
             SubInstruction::SetRandomAngle(min_angle, max_angle) => {
@@ -643,13 +645,14 @@ impl EclRunner {
                 enemy.fire(bullet_attributes=bullet_attributes)
             }
             */
+
             // 81
-            /*
-            SubInstruction::SetBulletLaunchOffset(x, y, z) => {
+            SubInstruction::SetBulletLaunchOffset(dx, dy, dz) => {
+                let (dx, dy, dz) = (self.get_f32(dx), self.get_f32(dy), self.get_f32(dz));
                 let mut enemy = self.enemy.borrow_mut();
-                enemy.bullet_launch_offset = (self._getval(x), self._getval(y), self._getval(z));
+                enemy.bullet_offset = Offset { dx, dy };
             }
-            */
+
             // 82
             // TODO: correct but how to implement that in a rusty way?
             /*