Doc update

1 files changed, 5 insertions, 4 deletions

diff --git a/NOTES.txt b/NOTES.txt
index d7fa819..eb6ea21 100644
--- a/NOTES.txt
+++ b/NOTES.txt
@@ -106,9 +106,9 @@ Deliberate differences between the Apple II and Atari ports:
     think it adds anything to the game, and it would be a lot of work to
     implement.
 
-15. On Apple, dead enemy ships sink one scanline at a time, and there are
-    at least 2 sinking speeds. On Atari, it's one character (8 scanlines)
-    at a time, and the speed is always the same.
+15. On Apple, dead enemy ships sink one scanline at a time.
+    On Atari, it's one character (8 scanlines). Both platforms have
+    multiple sinking speeds, but the Atari speeds are faster.
 
 16. When entering numeric amounts and the firm name, the Atari Shift-Delete
     key works as expected.
@@ -128,7 +128,8 @@ Deliberate differences between the Apple II and Atari ports:
 
 20. The game doesn't beep at you when you enter something incorrect. This
     is a stylistic decision (I hate error beeps). It does play the "bad
-    joss" sound in a few places instead.
+    joss" sound in a few places instead (e.g. trying to enter an empty
+    firm name).
 
 21. The cartridge version of the game has in-game help, if you press the
     ? key. So far this is only partly implemented.