The "Accept" is located way down, but you are not the first player to have missed it: I guess it wasn't clear, so I'm taking the blame here!
Thanks! I tried to emulate as good as possible this old "fake-3D" style.
A simple arrow around the top and bottom edges of the border of the options menu should be a hint for "more settings above/below".
Another thing I noticed is that even on Easy Mode it feels impossible to get first place with Captain Falcon, so once improved steering ideas gets added it should make everything more feasible