Use Surf field effect

src/fldeff_rocksmash.c

@@ -62,7 +62,7 @@ static void Task_FieldEffectShowMon_Init(u8 taskId)
         else
         {
             sub_805CB70();
-            ObjectEventSetHeldMovement(&gObjectEvents[mapObjId], MOVEMENT_ACTION_UNKNOWN_STEP_45);
+            ObjectEventSetHeldMovement(&gObjectEvents[mapObjId], MOVEMENT_ACTION_START_ANIM_IN_DIRECTION);
             gTasks[taskId].func = Task_FieldEffectShowMon_WaitPlayerAnim;
         }
     }