Are you running on a 64-bit computer? That might be too many bits; try running on an 8-bit machine.

Or open 8 more copies, that should be enough bits right?

7 more.

I thought it would be 8 times faster instead

Yeah, same here. But it did open and stay alive on the third launch, probably some initialization issue.

Same here, worked second time fine.

Using a 32bit OS? Crashes on my 2006 Core-Duo MBP too.

I have a 2006 Core Duo MBP also. Running file on the binary produces this:

Pixelfari: Mach-O 64-bit executable x86_64

Guess I'll have to find a 64-bit Mac so that I can play with it.