Left shift activates left flipper but no key seems to activate right flipper.
When the game launches I get the menu indicating function keys to set difficulty.
At the bottom it says press any key to begin game and that "Game controls follow..."
but when I press any key the game starts without anything about controls coming up.
I have a full-sized keyboard and no key activates right flipper.
Can anyone help?

Okay so I figured out how (ctrl-F1) to open the DOSBOX keymapper. I remapped the Ctrl key to trigger right shift so I can play the game that way.

Unfortunately I am stumped as to why DOSBOX even on the key configurator cannot "see" when I press the right shift key.
This is probably an issue in all DOSBOX programs and I'm not sure what I can do about it. If anyone knows I appreciate any assistance.