diff --git a/src/mess/drivers/comp4.c b/src/mess/drivers/comp4.c
index 1b72964e77d..2f29b3d28de 100644
--- a/src/mess/drivers/comp4.c
+++ b/src/mess/drivers/comp4.c
@@ -7,7 +7,7 @@
   
   This is a handheld Mastermind game; a code-breaking game where the player
   needs to find out the correct sequence of colours (numbers in our case).
-  It is known as Logic 5 in Europe, and as Pythaugoras in Japan.
+  It is known as Logic 5 in Europe, and as Pythaligoras in Japan.
   
   Press the R key to start, followed by a set of unique numbers and E.
   Refer to the official manual for more information.
diff --git a/src/mess/drivers/simon.c b/src/mess/drivers/simon.c
index 8800af3902b..e423973d172 100644
--- a/src/mess/drivers/simon.c
+++ b/src/mess/drivers/simon.c
@@ -12,8 +12,8 @@
   It is possibly a cost-reduced custom ASIC specifically for Simon.
   
   Other games assumed to be on similar hardware:
-  - Pocket Simon
-  - Super Simon
+  - Pocket Simon, but there's a chance it only exists with MB4850 chip
+  - Super Simon (TMS1100)
 
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