diff --git a/Makefile.mak b/Makefile.mak
index 3e13939c..4bb973d2 100644
--- a/Makefile.mak
+++ b/Makefile.mak
@@ -149,7 +149,7 @@ bin\th05\op.exe: th05\op010.cpp bin\th05\op.obj th05\op011.cpp th05\m_char.cpp b
 $**
 |
 
-bin\th05\main.exe: bin\th05\main.obj bin\th04\slowdown.obj th05\demo.cpp th05\ems.cpp bin\th05\cfg_lres.obj th05\main010.cpp th05\f_dialog.cpp th05\dialog.cpp th05\playfld.cpp bin\th04\mb_inv.obj bin\th04\boss_bd.obj th05\boss_bg.cpp th05\laser_rh.cpp th05\p_common.cpp th05\p_reimu.cpp th05\p_marisa.cpp th05\p_mima.cpp th05\p_yuuka.cpp bin\th05\player.obj bin\th05\hud_bar.obj bin\th05\scoreupd.obj th05\midboss5.cpp th05\hud_ovrl.cpp bin\th04\player_p.obj bin\th04\vector2n.obj bin\th05\spark_a.obj th05\bullet_p.cpp bin\th04\grcg_3.obj th05\player_a.cpp bin\th05\bullet_1.obj th05\bullet_c.cpp bin\th03\vector2.obj bin\th03\hfliplut.obj bin\th04\snd_pmdr.obj bin\th04\snd_mmdr.obj bin\th04\snd_mode.obj bin\th05\bullet.obj th05\bullet_t.cpp bin\th04\cdg_p_na.obj bin\th04\snd_se_r.obj bin\th04\snd_se.obj bin\th05\cdg_put.obj bin\th04\exit.obj bin\th05\vector.obj bin\th05\snd_load.obj bin\th05\snd_kaja.obj bin\th05\initmain.obj bin\th05\input_s.obj bin\th05\inp_h_w.obj bin\th05\frmdelay.obj bin\th04\cdg_load.obj bin\th04\scrolly3.obj bin\th04\motion_3.obj th05\gather.cpp th05\main032.cpp th05\midboss.cpp bin\th04\hud_hp.obj th05\mb_dft.cpp th05\laser_sc.cpp th05\cheeto_u.cpp bin\th04\it_spl_u.obj th05\bullet_u.cpp th05\midboss1.cpp th05\boss_1.cpp th05\boss_4.cpp th05\boss_6.cpp th05\boss_x.cpp th05\boss.cpp th05\main014.cpp
+bin\th05\main.exe: bin\th05\main.obj bin\th04\slowdown.obj th05\demo.cpp th05\ems.cpp bin\th05\cfg_lres.obj th05\main010.cpp th05\f_dialog.cpp th05\dialog.cpp th05\playfld.cpp bin\th04\mb_inv.obj bin\th04\boss_bd.obj th05\boss_bg.cpp th05\laser_rh.cpp th05\p_common.cpp th05\p_reimu.cpp th05\p_marisa.cpp th05\p_mima.cpp th05\p_yuuka.cpp bin\th05\player.obj bin\th05\hud_bar.obj bin\th05\scoreupd.obj th05\midboss5.cpp th05\hud_ovrl.cpp bin\th04\player_p.obj bin\th04\vector2n.obj bin\th05\spark_a.obj th05\bullet_p.cpp bin\th04\grcg_3.obj th05\player_a.cpp bin\th05\bullet_1.obj th05\bullet_c.cpp bin\th03\vector2.obj bin\th03\hfliplut.obj bin\th04\snd_pmdr.obj bin\th04\snd_mmdr.obj bin\th04\snd_mode.obj bin\th05\bullet.obj th05\bullet_t.cpp bin\th04\cdg_p_na.obj bin\th04\snd_se_r.obj bin\th04\snd_se.obj bin\th05\cdg_put.obj bin\th04\exit.obj bin\th05\vector.obj bin\th05\snd_load.obj bin\th05\snd_kaja.obj bin\th05\initmain.obj bin\th05\input_s.obj bin\th05\inp_h_w.obj bin\th05\frmdelay.obj bin\th04\cdg_load.obj bin\th04\scrolly3.obj bin\th04\motion_3.obj th05\gather.cpp th05\main032.cpp th05\midboss.cpp bin\th04\hud_hp.obj th05\mb_dft.cpp th05\laser.cpp th05\cheeto_u.cpp bin\th04\it_spl_u.obj th05\bullet_u.cpp th05\midboss1.cpp th05\boss_1.cpp th05\boss_4.cpp th05\boss_6.cpp th05\boss_x.cpp th05\boss.cpp th05\main014.cpp
 	$(CC) $(CFLAGS) $(LARGE_LFLAGS) -3 -Z -DGAME=5 -DBINARY='M' -nbin\th05\ -eMAIN.EXE @&&|
 $**
 |
diff --git a/th05/laser.cpp b/th05/laser.cpp
new file mode 100644
index 00000000..83674089
--- /dev/null
+++ b/th05/laser.cpp
@@ -0,0 +1 @@
+#include "th05/main/bullet/laser.cpp"
diff --git a/th05/laser_sc.cpp b/th05/laser_sc.cpp
deleted file mode 100644
index 75accbb3..00000000
--- a/th05/laser_sc.cpp
+++ /dev/null
@@ -1 +0,0 @@
-#include "th05/main/bullet/laser_sc.cpp"
diff --git a/th05/main/bullet/laser_sc.cpp b/th05/main/bullet/laser.cpp
similarity index 97%
rename from th05/main/bullet/laser_sc.cpp
rename to th05/main/bullet/laser.cpp
index 4149dba4..dc9659a6 100644
--- a/th05/main/bullet/laser_sc.cpp
+++ b/th05/main/bullet/laser.cpp
@@ -12,6 +12,9 @@ extern "C" {
 }
 #include "th05/main/bullet/laser.hpp"
 
+// Segment 3 (as allocated in the header)
+// ---------
+
 void near lasers_shootout_add(void)
 {
 	Laser near *laser;
@@ -98,3 +101,4 @@ void pascal near laser_stop(int slot)
 		lasers[slot].flag = LF_FREE;
 	}
 }
+// ---------
diff --git a/th05/main/bullet/laser.hpp b/th05/main/bullet/laser.hpp
index 6a49fd1b..ef6c4f88 100644
--- a/th05/main/bullet/laser.hpp
+++ b/th05/main/bullet/laser.hpp
@@ -73,6 +73,8 @@ extern Laser laser_template;
 /// -------
 /// "Manual" lasers ignore any age fields from the laser template.
 
+#pragma codeseg LASER_SC_TEXT
+
 // Spawns a new shoot-out laser based on the [laser_template].
 void near lasers_shootout_add(void);
 
@@ -90,6 +92,8 @@ void pascal near laser_manual_grow(int slot);
 // Transitions the laser at [slot] to a stopping phase appropriate for its
 // current one.
 void pascal near laser_stop(int slot);
+
+#pragma codeseg
 /// -------
 
 // Returns `true` if the laser is entirely off-screen.
@@ -98,5 +102,9 @@ bool16 pascal near laser_render_ray(const laser_coords_t near& coords);
 // Processes any collision between the given [laser] and the player.
 void pascal near laser_hittest(Laser near& laser);
 
+#pragma codeseg main__TEXT main_01
+
 void near lasers_update(void);
 void near lasers_render(void);
+
+#pragma codeseg
diff --git a/th05_main.asm b/th05_main.asm
index c2279161..498274c2 100644
--- a/th05_main.asm
+++ b/th05_main.asm
@@ -4368,7 +4368,9 @@ loc_FBF7:
 		leave
 		retn
 sub_FAA3	endp
+main__TEXT	ends
 
+PLAYFLD_TEXT	segment	byte public 'CODE' use16
 include th05/main/bullet/lasers_update_render.asm
 include th05/main/bullet/cheetos_render.asm
 include th04/main/item/splashes_render.asm
@@ -4584,9 +4586,7 @@ loc_10282:
 		pop	bp
 		retn
 sub_10214	endp
-main__TEXT	ends
 
-PLAYFLD_TEXT	segment	byte public 'CODE' use16
 	@playfield_shake_update_and_rende$qv procdesc pascal near
 PLAYFLD_TEXT	ends