diff --git a/hardware/kartusho/roms/rcs.exe b/hardware/kartusho/roms/rcs.exe
deleted file mode 100644
index 32b3dbb..0000000
Binary files a/hardware/kartusho/roms/rcs.exe and /dev/null differ
diff --git a/hardware/kartusho/snapshots/rcs.exe b/hardware/kartusho/snapshots/rcs.exe
deleted file mode 100644
index 32b3dbb..0000000
Binary files a/hardware/kartusho/snapshots/rcs.exe and /dev/null differ
diff --git a/sdk/bin/.gitignore b/sdk/bin/.gitignore
index 80525db..ccf57af 100644
--- a/sdk/bin/.gitignore
+++ b/sdk/bin/.gitignore
@@ -9,6 +9,7 @@ bin2hex
 fcut
 fpad
 fpoke
+rcs
 GenRom
 AddItem
 Bit2Bin
diff --git a/sdk/bin/rcs.exe b/sdk/bin/rcs.exe
new file mode 100755
index 0000000..99faa07
Binary files /dev/null and b/sdk/bin/rcs.exe differ
diff --git a/sdk/bin/rcs.exe.license b/sdk/bin/rcs.exe.license
new file mode 100644
index 0000000..8ca935f
--- /dev/null
+++ b/sdk/bin/rcs.exe.license
@@ -0,0 +1,11 @@
+SPDX-FileName: rcs.exe
+
+SPDX-FileType: BINARY
+
+SPDX-FileChecksum: SHA1: 49651fa71f9da7cd56c2e3e9bb5af2d4398b1fb6
+
+SPDX-FileCopyrightText: Copyright (C) 2013, 2021 Antonio Villena
+
+SPDX-License-Identifier: GPL-3.0-only
+
+SPDX-FileComment: rcs version 1.03 (18 Jan 2013) - SCR filter to RCS (and inverse).
diff --git a/sdk/src/Makefile b/sdk/src/Makefile
index 1a80c76..6b846a7 100644
--- a/sdk/src/Makefile
+++ b/sdk/src/Makefile
@@ -252,6 +252,7 @@ INSTALLED_TOOLS:=\
  $(INSTALLDIR)/fcut$(EXESUFFIX)\
  $(INSTALLDIR)/fpad$(EXESUFFIX)\
  $(INSTALLDIR)/fpoke$(EXESUFFIX)\
+ $(INSTALLDIR)/rcs$(EXESUFFIX)\
  $(INSTALLDIR)/GenRom$(EXESUFFIX)\
  $(INSTALLDIR)/AddItem$(EXESUFFIX)\
  $(INSTALLDIR)/Bit2Bin$(EXESUFFIX)
@@ -274,6 +275,9 @@ $(INSTALLDIR)/fpad$(EXESUFFIX): tools/fpad$(EXESUFFIX)
 $(INSTALLDIR)/fpoke$(EXESUFFIX): tools/fpoke$(EXESUFFIX)
 	cp $< $@
 
+$(INSTALLDIR)/rcs$(EXESUFFIX): tools/rcs$(EXESUFFIX)
+	cp $< $@
+
 $(INSTALLDIR)/GenRom$(EXESUFFIX): tools/GenRom$(EXESUFFIX)
 	cp $< $@
 
diff --git a/sdk/src/tools/.gitignore b/sdk/src/tools/.gitignore
index 9d149b3..b012b0f 100644
--- a/sdk/src/tools/.gitignore
+++ b/sdk/src/tools/.gitignore
@@ -10,6 +10,8 @@ fpad
 fpad.exe
 fpoke
 fpoke.exe
+rcs
+rcs.exe
 GenRom
 GenRom.exe
 AddItem
diff --git a/sdk/src/tools/Makefile b/sdk/src/tools/Makefile
index b436257..c168e7e 100644
--- a/sdk/src/tools/Makefile
+++ b/sdk/src/tools/Makefile
@@ -25,6 +25,7 @@ TARGETS:=\
  fcut$(EXESUFFIX)\
  fpad$(EXESUFFIX)\
  fpoke$(EXESUFFIX)\
+ rcs$(EXESUFFIX)\
  GenRom$(EXESUFFIX)\
  AddItem$(EXESUFFIX)\
  Bit2Bin$(EXESUFFIX)
diff --git a/sdk/src/tools/tools.url b/sdk/src/tools/tools.url
index 82e3211..9a4c032 100644
--- a/sdk/src/tools/tools.url
+++ b/sdk/src/tools/tools.url
@@ -4,3 +4,4 @@
 
 https://sourceforge.net/p/emuscriptoria/code/HEAD/tree/desprot/
 https://github.com/antoniovillena/EmuScriptoria/tree/master/desprot
+https://github.com/DSkywalk/fase