Made Franklin Bookman sub-cat in PDA.
The system isn't applicable to be put on the site, as it is not a console or a computer.
For Bright Things, it seems the manufacturer is Bandai and Bright Things only handled the software side. I can make the Bubble section in Bandai but then the system(s) would go into Bandai Consoles. LMK if this will be ok.
Added My Life Accessory.
The packaging back image you provided shows "My Life" with the space in it. It is hard to tell is a space is used or not in the logo. It is usually difficult to search for this system in general due to how most classified sites besides Ebay doesn't support quotes in their search field. Either way, you may decide to put "MyLife" in alt-name for the system and/or accessory entries.
For PC-50x, here is the list
https://vgcollect.com/forum/index.php/topic,6782.msg198590.html#msg198590Ideally there should
not be a PC-50x game category and the only entry that was in there is ambiguous, the PC-501 Supersportic which has a confusing release history and when I tried to figure out where it goes, I wasn't able to get enough information to put it somewhere else.
Bandai TV Jack 5000 already has a sub-cat in PC-50x, so they should be put into there. It has Stunt Cycle in there too, so the one you made is a dupe.