Good DOS ports of arcade games?

[Brianvgplayer]

I liked the old Atarisoft Ms. Pac-Man port, though it played better with joystick.
I remember the Qix port being pretty good.
Dig Dug was ok.
I remember DK and Zaxxon being pretty good.
Williams Arcade Hits was orignially DOS based. Emulation rather than ports, but very well done.