There are not enough words to describe how completely good this show is.
Damn, I can't find a decent version of the Robo Samurai vs Mondo Bot fight on Youtube. There's just this sorta crappy abridged version that doesn't really do it justice. It's pretty much my favourite fight in the whole series.
I love the Sergio Leone esque quality that the whole series has, but that episode is probably the one that uses that sort of style the most. Even though you catch on pretty quick that the main focus of the sequence is going to be to display the largeness of the scale of the combatants more than any thing else, it still manages to really entertain me because it carries out that simple, somewhat 1-dimensional premise really well. The wide shots when Mondo Bot is firing really big weapons and the time it takes for the smoke to clear after each assault really work perfectly. I also love the shots of the huge bullet casings raining down on the buildings and city streets below him, abruptly crushing cars and so forth. The little details like the seagulls taking off, behind him, spooked by his sudden and colossal movements are cute too.
But then of course, it all comes down to a hand to hand fight and then a final, terminator style desperation attack.
Edit: Oh wait, I think I found it on some Italian site
http://www.blinkx.com/video/samurai-jack-xli-robo-samurai-versus-mondo-bot/7ul4nX3UBZkhlmchdLmx6Aof course, this is the whole episode. The fight I'm talking about starts at about the 10 minute mark.