Viruses sometimes hijack themselves into ordinary looking files, have you tried scanning it?

I'm testing it on wabbit, is they way you achieve grey by alternating the grey sections between totally white and totally black?  Thats what it looks like its doing on wabbit.  I turned down the shades to 2 shades of grey, and slowed the game down, and it doesn't look like the traditional checkerboard, but its flashing instead?

I'm not sure but I don't believe his engine can support multiple height tiles

Hmm this is a pretty complex question, I myself have looked into creating nodes intelligently for a game I was working on a while back.  Try something like this, fill the screen with nodes all over the place, and connect them accordingly.  Next, remove any redundant nodes.  That is, remove any node that does not provide a new field of view from that of a connected node.  Also don't remove any nodes that would separate the node tree into two sections. 

It would be a bit complicated, and you would probably have to add in some weighting to decide which nodes were better to remove than others, and even possibly fining the midpoint of nodes if they are of equal weight.

Here is two pictures to illustrate what I'm talking about.  The first picture is a map filled evenly with nodes, all connected to each other.  The second image is one possible generation with all of the other redundant nodes removed.

This is not the engine you would want to use, that one would be this:

http://ourl.ca/7764

Which is a lot less computationally intensive than chainFire, and it replicates the physics of sonic using the specific algorithms and method that the original sonic used!  And adding scrolling wouldn't harm the physics calculations in the slightest, it would just add the computational time of doing the actual scrolling.

Part of it was stuck in a chunk that refused to update so i was force to leave the front door open Hope no creepers find their way inside...

I know that it is possible for people with the full version to invite people with the trial version to a hosted game (Starjeweled or Regular), but trial cannot play as any race except the Terran.  That being said I have been practicing and am getting better ^^

How does the greyscale look on calc?  I'm surprised wabbit is failing at rendering the grey that way, it is usually pretty good at that o.O Maybe the settings?  How many levels of grey are you using?