Yeah the screenshot was a lot slower than the video, but still nice. He released the source on MC a few years ago when he left the community but I don't know if it's still up since they moved hosts often

nah the main engine was quite solid but besides koopas/shells and goombas and mushroom not much was working yet. What was done is pretty much what's seen in this screenie. However calc84 version is progressing further now so we will still have a new mario game with better physics than the Bill Nagel version and working pipes ^^

Yeah calc's is awesome, I cant wait to hear/see more of it.

If you wanna take a look at durks source...I think I have it somewhere

Hey, that's lookin really great! Are you going to add the ability for mario to slide under objects?

wow awesome, getting better and better. You should try to make the bullets so they won't appear over the cannons (maybe use some kind of masking so the cannon appears on top?) Or maybe add some kind of (...nuke...er...not...) explosion on the cannon sprite when a bullet is fired?

As for sliding under objects I think art of camelot meant when you run and crouch while moving, like in all other mario games. I wonder if that would be possible. I think Duck's mario had this

@DJ Omnimaga: Yes, thats what I meant, and yea Duck's did. I guess a better way of saying it is "will there be inertia ?"(which would allow mario to slide under blocks if you duck while in motion).

I understood the question, and my answer still applies. What if he slides under a block? He won't be able to get up or get out. How did the real Mario games handle this?

In New Super Mario Bros for the DS, when Mario gets stuck under something, he automatically scrolls to the right, until he is not stuck anymore.  It looks sort of like a glitch, though, because he scrolls out, not walks. 

This is just a sugestion
I think you should make the enemy guys that you can flatten when you jump on ther heads walk fast enough.