diff --git a/.gitignore b/.gitignore
index 61f6368094..f408c80f71 100644
--- a/.gitignore
+++ b/.gitignore
@@ -27,4 +27,8 @@ settings.mk
 /msg
 /sprite
 
+# Star Rod
+/sprite/SpriteTable.xml
+/mod.cfg
+
 tools/Yay0compress
diff --git a/.gitmodules b/.gitmodules
index ea18e6107a..97a5208789 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,3 +1,6 @@
 [submodule "tools/n64splat"]
 	path = tools/n64splat
-	url = https://github.com/ethteck/n64splat.git
\ No newline at end of file
+	url = https://github.com/ethteck/n64splat.git
+[submodule "tools/star-rod"]
+	path = tools/star-rod
+	url = https://github.com/nanaian/star-rod-for-decomp.git
diff --git a/Makefile b/Makefile
index 2c55403d01..da7cc3140a 100644
--- a/Makefile
+++ b/Makefile
@@ -7,6 +7,7 @@ TARGET = papermario
 COMPARE = 1
 NON_MATCHING = 0
 WATCH_INCLUDES = 1
+WSL_ELEVATE_GUI = 1
 
 -include settings.mk
 
@@ -68,6 +69,15 @@ ifeq ($(UNAME_S),Darwin)
 	ICONV := tools/iconv.py UTF-8 SHIFT-JIS
 endif
 
+WSL := 0
+JAVA := java
+ifeq ($(findstring microsoft,$(shell cat /proc/sys/kernel/osrelease)),microsoft)
+	WSL := 1
+	ifeq ($(WSL_ELEVATE_GUI),1)
+		JAVA := powershell.exe -command java
+	endif
+endif
+
 OLD_AS=tools/$(OS)/mips-nintendo-nu64-as
 CC=tools/$(OS)/cc1
 
@@ -115,14 +125,16 @@ tools:
 
 setup: clean submodules tools split $(LD_SCRIPT)
 
+# tools/star-rod submodule intentionally omitted
 submodules:
+	git submodule init tools/n64splat
 	git submodule update --init --recursive
 
 split:
 	$(SPLAT) --modes ld bin Yay0 PaperMarioMapFS PaperMarioMessages img PaperMarioNpcSprites --new
 
 split-%:
-	$(SPLAT) --modes ld $* --verbose --new
+	$(SPLAT) --modes ld $* --verbose
 
 split-all:
 	$(SPLAT) --modes all
@@ -269,9 +281,25 @@ $(BUILD_DIR)/$(TARGET).bin: $(BUILD_DIR)/$(TARGET).elf
 include/ld_addrs.h: $(BUILD_DIR)/$(LD_SCRIPT)
 	grep -E "[^\. ]+ =" $< -o | sed 's/^/extern void* /; s/ =/;/' > $@
 
+
+### Star Rod (optional) ###
+
+STAR_ROD := cd tools/star-rod && $(JAVA) -jar StarRod.jar
+
+# lazily initialise the submodule
+tools/star-rod:
+	git submodule init tools/star-rod
+
+sprite/SpriteTable.xml: tools/star-rod sources.mk
+	$(PYTHON) tools/star-rod/spritetable.xml.py $(NPC_SPRITES) > $@
+
+editor: tools/star-rod sprite/SpriteTable.xml
+	$(STAR_ROD)
+
+
 ### Make Settings ###
 
-.PHONY: clean tools test setup submodules split $(ROM) include/sprite
+.PHONY: clean tools test setup submodules split editor $(ROM) include/sprite
 .DELETE_ON_ERROR:
 .SECONDARY:
 .PRECIOUS: $(ROM) %.Yay0
diff --git a/README.md b/README.md
index 67b6c4f8ff..c0437eacfe 100644
--- a/README.md
+++ b/README.md
@@ -42,6 +42,10 @@ $ make
 
 If you get `OK`, you're all set! Otherwise, please feel free to reach out to us in [our Discord channel](https://discord.gg/urUm3VG).
 
+## Star Rod GUI
+
+You can open [our modified version of Star Rod](https://github.com/nanaian/star-rod-for-decomp) with `make editor`.
+
 ## Contributing
 
 ### Dependencies
@@ -136,4 +140,4 @@ make: *** [verify] Error 1
 ```
 > 💡 Solution
 
-> Run `git checkout checksum.sha1` and retry building. Windows has different line endings than Linux, causing some of our tools to break. 
+> Run `git checkout checksum.sha1` and retry building. Windows has different line endings than Linux, causing some of our tools to break.
diff --git a/sources.mk b/sources.mk
index b60510fd72..20170f1f79 100644
--- a/sources.mk
+++ b/sources.mk
@@ -58,7 +58,7 @@ ASSETS := \
 
 MESSAGES := $(shell find msg -type f -name "*.msg" 2> /dev/null)
 
-NPC_SPRITES := world_goombario world_kooper world_bombette world_parakarry world_bow world_watt world_sushi world_lakilester battle_goombario battle_kooper battle_bombette battle_parakarry battle_bow battle_watt battle_sushi battle_lakilester kooper_without_shell world_eldstar world_mamar world_skolar world_muskular world_misstar world_klevar world_kalmar battle_eldstar battle_mamar battle_skolar battle_muskular battle_misstar battle_klevar battle_kalmar twink jr_troopa spiked_jr_troopa spiked_para_jr_troopa mage_jr_troopa para_jr_troopa goomba spiked_goomba paragoomba koopa_troopa para_troopa fuzzy bob_omb bullet_bill bill_blaster monty_mole cleft pokey battle_bandit buzzy_beetle swooper stone_chomp putrid_piranha piranha_plant sentinel world_clubba battle_clubba shy_guy groove_guy sky_guy pyro_guy spy_guy medi_guy fuzzipede jungle_guy heart_plant hurt_plant m_bush bubble kent_c_koopa dayzee lakitu spiny bzzap ruff_puff spike_top duplighost albino_dino blooper baby_blooper gulpit dry_bones thrown_bone bony_beetle magikoopa flying_magikoopa world_koopatrol koopatrol hammer_bros bush_basic bush_blocky bush_dry bush_leafy bush_matted world_kammy battle_kammy goomba_bros goomba_king spiky_goomnut dark_toad koopa_bros buzzar tutankoopa chain_chomp world_tubba battle_tubba tubbas_heart big_lantern_ghost shy_squad_guy marshal_guy stilt_guy stilt_guy_unfold shy_stack_guy shy_stack_unfold shy_stack_damage shy_stack_rock general_guy general_guy_bomb tank_guy lava_piranha_head petit_piranha lava_bud huff_n_puff tuff_puff monstar crystal_king world_bowser battle_bowser luigi toad three_sisters vanna_t toad_kid toad_guard harry_t toad_minister postmaster conductor_toad train_station_toad fishmael artist_toad koopa koopa_without_shell world_bob_omb whacka dryite mouser boo yoshi yoshi_kid raven bubulb penguin shiver_toad world_bandit goompapa goombaria goomama goompa goomma the_master chan lee merlon chet_rippo rowf minh_t russ_t tayce_t fice_t bartender chanterelle rip_cheato chuck_quizmo merluvlee merlar merlow star_kid kolorado_wife koopa_koot kolorado battle_kolorado archeologist nomadimouse world_merlee battle_merlee disguised_moustafa moustafa oaklie bootler yakkey gourmet_guy village_leader leaders_friend rafael_raven tolielup gate_flower petunia posie lily rosie sun lakilulu ninji mayor_penguin mayor_penguin_wife penguin_patrol herringway merle star_rod fire coin parade_peach parade_koopas parade_burnt_bowser parade_luigi parade_partners parade_yoshis parada_kolorados parade_chicks parade_ice_show parade_toads parade_batons parade_drums parade_flags parade_horns parade_tubba_balloon parade_wizards parade_mario parade_shy_guys parade_twink leaf
+NPC_SPRITES := world_goombario world_kooper world_bombette world_parakarry world_bow world_watt world_sushi world_lakilester battle_goombario battle_kooper battle_bombette battle_parakarry battle_bow battle_watt battle_sushi battle_lakilester kooper_without_shell world_eldstar world_mamar world_skolar world_muskular world_misstar world_klevar world_kalmar battle_eldstar battle_mamar battle_skolar battle_muskular battle_misstar battle_klevar battle_kalmar twink jr_troopa spiked_jr_troopa spiked_para_jr_troopa mage_jr_troopa para_jr_troopa goomba spiked_goomba paragoomba koopa_troopa para_troopa fuzzy bob_omb bullet_bill bill_blaster monty_mole cleft pokey battle_bandit buzzy_beetle swooper stone_chomp putrid_piranha piranha_plant sentinel world_clubba battle_clubba shy_guy groove_guy sky_guy pyro_guy spy_guy medi_guy fuzzipede jungle_guy heart_plant hurt_plant m_bush bubble kent_c_koopa dayzee lakitu spiny bzzap ruff_puff spike_top duplighost albino_dino blooper baby_blooper gulpit dry_bones thrown_bone bony_beetle magikoopa flying_magikoopa world_koopatrol koopatrol hammer_bros bush_basic bush_blocky bush_dry bush_leafy bush_matted world_kammy battle_kammy goomba_bros goomba_king spiky_goomnut dark_toad koopa_bros buzzar tutankoopa chain_chomp world_tubba battle_tubba tubbas_heart big_lantern_ghost shy_squad_guy marshal_guy stilt_guy stilt_guy_unfold shy_stack_guy shy_stack_unfold shy_stack_damage shy_stack_rock general_guy general_guy_bomb tank_guy lava_piranha_head petit_piranha lava_bud huff_n_puff tuff_puff monstar crystal_king world_bowser battle_bowser luigi toad three_sisters vanna_t toad_kid toad_guard harry_t toad_minister postmaster conductor_toad train_station_toad fishmael artist_toad koopa koopa_without_shell world_bob_omb whacka dryite mouser boo yoshi yoshi_kid raven bubulb penguin shiver_toad world_bandit goompapa goombaria goomama goompa goomma the_master chan lee merlon chet_rippo rowf minh_t russ_t tayce_t fice_t bartender chanterelle rip_cheato chuck_quizmo merluvlee merlar merlow star_kid kolorado_wife koopa_koot kolorado battle_kolorado archeologist nomadimouse world_merlee battle_merlee disguised_moustafa moustafa oaklie bootler yakkey gourmet_guy village_leader leaders_friend rafael_raven tolielup gate_flower petunia posie lily rosie sun lakilulu ninji mayor_penguin mayor_penguin_wife penguin_patrol herringway merle star_rod fire coin parade_peach parade_koopas parade_burnt_bowser parade_luigi parade_partners parade_yoshis parade_kolorados parade_chicks parade_ice_show parade_toads parade_batons parade_drums parade_flags parade_horns parade_tubba_balloon parade_wizards parade_mario parade_shy_guys parade_twink leaf
 
 # Image settings
 $(BUILD_DIR)/img/battle/text_action_command_ratings.ia4.png: IMG_FLAGS = --flip-y
diff --git a/tools/compile_npc_sprite.py b/tools/compile_npc_sprite.py
index 6a8f8d42f2..39a7d96005 100755
--- a/tools/compile_npc_sprite.py
+++ b/tools/compile_npc_sprite.py
@@ -46,9 +46,9 @@ if __name__ == "__main__":
 
                 f.write(offset.to_bytes(4, byteorder="big"))
                 f.write((len(comp.commands) * 2).to_bytes(2, byteorder="big"))
-                f.write(comp.x.to_bytes(2, byteorder="big"))
-                f.write(comp.y.to_bytes(2, byteorder="big"))
-                f.write(comp.z.to_bytes(2, byteorder="big"))
+                f.write(comp.x.to_bytes(2, byteorder="big", signed=True))
+                f.write(comp.y.to_bytes(2, byteorder="big", signed=True))
+                f.write(comp.z.to_bytes(2, byteorder="big", signed=True))
 
             next_anim = f.tell()
 
diff --git a/tools/splat.yaml b/tools/splat.yaml
index 583634680c..83fa42f220 100644
--- a/tools/splat.yaml
+++ b/tools/splat.yaml
@@ -7348,7 +7348,7 @@ segments:
       - parade_luigi
       - parade_partners
       - parade_yoshis
-      - parada_kolorados
+      - parade_kolorados
       - parade_chicks
       - parade_ice_show
       - parade_toads
diff --git a/tools/splat_ext/PaperMarioNpcSprites.py b/tools/splat_ext/PaperMarioNpcSprites.py
index 5242e84213..cd7be31575 100644
--- a/tools/splat_ext/PaperMarioNpcSprites.py
+++ b/tools/splat_ext/PaperMarioNpcSprites.py
@@ -241,9 +241,9 @@ class Component:
         commands_data = sprite_data[commands_offset : commands_offset + commands_size]
         self.commands = [int.from_bytes(d[0:2], byteorder="big") for d in iter_in_groups(commands_data, 2)]
 
-        self.x = int.from_bytes(data[6:8], byteorder="big")
-        self.y = int.from_bytes(data[8:10], byteorder="big")
-        self.z = int.from_bytes(data[10:12], byteorder="big")
+        self.x = int.from_bytes(data[6:8], byteorder="big", signed=True)
+        self.y = int.from_bytes(data[8:10], byteorder="big", signed=True)
+        self.z = int.from_bytes(data[10:12], byteorder="big", signed=True)
 
         return self
 
diff --git a/tools/star-rod b/tools/star-rod
new file mode 160000
index 0000000000..aec5d4c037
--- /dev/null
+++ b/tools/star-rod
@@ -0,0 +1 @@
+Subproject commit aec5d4c037e95227fb5f118075564031636697fe