diff --git a/src/emu/cpu/melps4/m58846.c b/src/emu/cpu/melps4/m58846.c
index 2fb0d2107f8..0bc2c8592b5 100644
--- a/src/emu/cpu/melps4/m58846.c
+++ b/src/emu/cpu/melps4/m58846.c
@@ -4,14 +4,9 @@
 
   Mitsubishi M58846 MCU
 
-  TODO:
-  - o hai
-
 */
 
 #include "m58846.h"
-//#include "debugger.h"
-
 
 
 const device_type M58846 = &device_creator<m58846_device>;
diff --git a/src/emu/cpu/melps4/melps4.c b/src/emu/cpu/melps4/melps4.c
index 1e9b51be0a9..686b49d396a 100644
--- a/src/emu/cpu/melps4/melps4.c
+++ b/src/emu/cpu/melps4/melps4.c
@@ -31,6 +31,10 @@
   - 1980 and 1982 Mitsubishi LSI Data Books
   - M34550Mx-XXXFP datasheet (this one is MELPS 720 family)
 
+  TODO:
+  - need more drivers that use this, to be sure that emulation is accurate
+  - add output PLA
+
 */
 
 #include "melps4.h"
diff --git a/src/mess/drivers/hh_melps4.c b/src/mess/drivers/hh_melps4.c
index a5a8efb9180..2fc3291e383 100644
--- a/src/mess/drivers/hh_melps4.c
+++ b/src/mess/drivers/hh_melps4.c
@@ -345,4 +345,4 @@ ROM_END
 
 
 /*    YEAR  NAME      PARENT COMPAT MACHINE  INPUT     INIT              COMPANY, FULLNAME, FLAGS */
-CONS( 1981, cfrogger, 0,        0, cfrogger, cfrogger, driver_device, 0, "Coleco", "Frogger (Coleco)", GAME_SUPPORTS_SAVE | GAME_REQUIRES_ARTWORK | GAME_NOT_WORKING )
+CONS( 1981, cfrogger, 0,        0, cfrogger, cfrogger, driver_device, 0, "Coleco", "Frogger (Coleco)", GAME_SUPPORTS_SAVE | GAME_REQUIRES_ARTWORK )