Thread:Nbajammer/@comment-34949973-20171016033811/@comment-11479355-20171016131926

Normally a Bugster would've achieved its perfect form when it no longer requires the host in order for it to survive. Usually the host would die and fade away into data, as with the case of Graphite, Lovelica, and Poppy, and their respective hosts. They can be revived at any time as long as a Gashacon Bugvisor is used, unless they get defeated by Cronus.

I'm not entirely sure about Burgermon though. His game was cleared in a non-destructive way, thus Burgermon continued to survive even though the infection from his host (Tsukuru) was cleared, which means that technically Burgermon didn't need to infect his host to survive anymore.

Then again, the only Bugvisor at the time was in Kuroto's possession, so it is possible that Burgermon could've been revived that way, but we don't know. Even now by the end of the series, the Bugvisors are....you know, somewhere.