Pitfall! (Atari 2600 Emulated Expert/A Mode)

I'm not sure there is any difference between "A" and "B" on this game but the categories are still up so I'm putting up a score!

According to the Activision's Pitfall, Difficulty Switches and Game Select have NO effect.

The basic advice is to READ THE MANUAL.

And 114,000 is the perfect score which you can obtain in Pitfall!

thank you oyamafamily for the added confirmation. 

I guess some people are saying that there are sometimes functions for the switches even when the manual says otherwise, which one finds by breaking down the code.

1) Moon Patrol for Atari 2600. Read the manual in the following URL:

http://atariage.com/manual_html_page.html?SoftwareLabelID=311

From the manual, Left Difficulty toggles Music (B is Music ON, and A is Music OFF), and Right Difficulty selects the number of moving speeds (B is 3 speeds, and A is 2 speeds). On my Stella Emulator 3.9.2, Difficulty Switches are working INVERSELY (Left B = Music OFF; Left A = Music ON; Right B = 2 moving speeds; Right A = 3 moving speeds).

2) Assault by Bomb. Manual in the following URL:

http://atariage.com/manual_html_page.html?SoftwareLabelID=1005

The manual doesn't say about Difficulty Switches, but when I played Assault on Stella, I tried to change Left Difficulty Switch to A, which has the effect: slow missiles shot by enemies, which make it easier to dodge them. On Left Difficulty B, missiles shot by enemies are fast.