\input luatexja.sty
\def\FN{KozMinPr6N-Regular}

\leavevmode
\tfont\VN=\FN:-vert;jfm=ujisv
\tfont\VT=\FN:+vert;jfm=ujisv
\tfont\VU=\FN:+vrt2;jfm=ujisv
\tfont\VB=\FN:+vert;+vrt2;jfm=ujisv
\tfont\VD=\FN:jfm=ujisv
\tentt
\ltjsetparameter{jacharrange={+8}}
\def\TEST{\tate 上⇦⇧⇩⇨⬅⬆⬇➡下¶\ltjjachar"253B\ltjjachar"0165，}
\hbox{\TEST}
\hbox{\VD\TEST ~~~~~default}
\hbox{\VB\TEST +vert +vrt2}
\hbox{\VN\TEST -vert -vrt2}
\hbox{\VT\TEST +vert -vrt2}
\hbox{\VU\TEST -vert +vrt2}

\par

\catcode`\@=11
\expandafter\@gobble\TEST

\bye

