MOLLY'S ANALYSIS is a quest in OMORI. It is one of the many optional side quests available when talking with MARINA after feeding HUMPHREY the GIANT CHECK on ONE DAY LEFT. It is also exclusive to the OMORI ROUTE.
Once the player has completed the FEED HUMPHREY sidequest, they are able to regain access to the whale's insides. This includes encountering all three of the SLIME GIRLS once again within each of their respective laboratories.
MOLLY can found within her lab but appears as an disembodied head like her other two sisters. Upon noticing OMORI and the party, MARINA apologizes for her previous actions, noting she and her sisters tend to get carried away.
She then askes the group to help her restore her body by collecting SCRAP METAL, which can be obtained by defeating any WORM-BOTS roaming around her sector. Defeating a single WORM-BOT will automatically drop SCRAP METAL for the group to collect. From that point on, the player can then return to MOLLY's lab to finish the sidequest.
Upon giving MOLLY the SCRAP METAL, a short cutscene reveals that despite her efforts, MOLLY isn't able to fully recreate her original body. However, she then decides that she prefers to just be a head.
Interacting with MOLLY's head has her commenting on how she finds that having no body is more convenient, wondering why she didn't think of that before.
MARI (Molly's Analysis) Incomplete #1
MARI (Molly's Analysis) Incomplete #2
MARI (Molly's Analysis) Complete