e|-----------5--------0-----------------5-----------------------------------5-------7-| B|----------------------------3------------------------------------3------------------| G|-2---------------------------------------------2-------2----------------------------| D|------------------------------------------------------------------------------------| A|------------------------------------------------------------------------------------| E|------------------------------------------------------------------------------------| e|-5---------0--------------------------5--------0-----------------5---------------| B|--------------------3----------------------------------3-------------------------| G|----------------------------2---------------------------------------------2------| D|---------------------------------------------------------------------------------| A|---------------------------------------------------------------------------------| E|---------------------------------------------------------------------------------| e|--------------------5-------7--5---------0---------------| B|-----------3--------------------------------------3------| G|-2-------------------------------------------------------| D|---------------------------------------------------------| A|---------------------------------------------------------| E|---------------------------------------------------------|
https://primanota.net/misc-computer-games/undertale-start-menu-chords.htm