The bugs attacked because Opti had been doing some missions in Chicago, where bug spirits are nasty and prolific. So when he started talking about stuff he shouldn't, someone sent bugs after him. At least, that is what he keeps telling himself. It could be a random attack. But that couldn't be true.
The extra voices are still being worked out, so I hope to have them on again, but for quality control purposes (and time), they won't be an every episode thing.
