Completionist Guides - Nintendo
Below are several guides for 100% completing various Nintendo games and series. These guides are currently available in google sheets, but Libre Office and Microslop Excel formats will be available when this page is complete. You can copy the sheets for use as checklists in your playthroughs; details on the specifics of each guide and strategies to optimally complete some games are in the spreadsheets themselves.
Pokemon - Main and Side Series
This section includes guides for games in the main series of Pokemon (Red/Green/Blue/Yellow, Gold/Silver/Crystal, etc.), as well as side series games (those that are main series-adjacent but notably distinct: Stadium, Stadium 2, Colosseum, XD, Battle Revolution, and the Legends games).