Ah ok. FYI I should have referenced the dissassembly that Scott and Sean did, you can see the actual algorithm better. Start here http://seanriddle.com/roboma

Ah ok. FYI I should have referenced the dissassembly that Scott and Sean did, you can see the actual algorithm better. Start here http://seanriddle.com/robomame.asm http://seanriddle.com/robomame.asm and jump to the player start routine at $2B0B.