Just released a new version of Bacteria.

• Support a world of Bacteria per monitor (as requested by Zarek)
• Completely overhauled Bacteria intelligence
• Switched to Anti-Grain geometry for high quality graphics rendering
• Increased Bacteria size and removed large option
• Improved Bacteria movement
• Slight improvements to configuration dialog
• Statically linked so no more missing DLL errors
• Many other internal optimizations and improvements

You can download Bacteria v0.20 from my programs page.