The MAILBOX from the playground has also vanished, and will only return once NORTH LAKE and the resort are completed. In addition, all of his friends from the playground (excluding MARI) have vanished due to being tricked into working at the LAST RESORT by MR. Upon returning to HEADSPACE once more, OMORI finds himself locked out of WHITE SPACE due to SOMETHING's presence lurking there. In addition, the MAILBOX encountered at the optional ORANGE OASIS provides more items at an expensive price, but they can be used to maintain the party's HEART and JUICE when taking on the DINO'S DIG challenge.

The items it provides there contain more healing boosts when used in both battle and overworld. From there, the MAILBOX appears at the end of the forest, right near a PLUTO'S SPACELINE station and MARI herself. The following day, the group can now access PYREFLY FOREST once OMORI has conquered his fear of spiders. The items provided there are useful for gaining an advantage against SPACE EX-BOYFRIEND. In OTHERWORLD, the MAILBOX appears at the campsite, next to one of the floating mirrors and north of MARI's picnic. The party can also sell some specific items for their CLAMS back as well. The MAILBOX will continue appearing in various locations of HEADSPACE, waiting for OMORI and friends to buy its goods. It is mandatory to interact with the object, as it will offer them items needed for the upcoming journey throughout HEADSPACE. After OMORI and his friends play hide-and-seek due to BERLY roping them in, the party will stopped from leaving to BASIL'S HOUSE as a voice comes out from the MAILBOX. The first MAILBOX appears at VAST FOREST's playground, in which it appears to be inanimate when interacting with it. This was shown when it tries selling the POOL NOODLE for 5000 clams at first but if you keep refusing, the price will eventually drop to 0. It is also shown to be desperate to make anyone buy its products. However, it can get a bit irritated if the party refuses to buy anything after looking through its shop. The MAILBOX appears to enjoy the company of OMORI and friends whenever they buy items from its shop. This form was scrapped by the time the final 2020 game was released.

In the 2018 demo, it originally took on the appearance of a white-colored fox known as CHEERS. The mailbox itself is blue and appears to have something written on it. The MAILBOX'S true appearance is unknown due to the fact that it is never seen outside the mailbox. All that is visible of the MAILBOX are two glowing, white eyes.

Blue mailbox near me