A wicked track-looking font with every letter at least has a 180-degree-flip pair. Perfect for ambigram.
" ( " for left line cap
" ) " for right line cap
"space" for extending the line
Numbers working as letters, mirrored, rotated, inverted... Letters taking the place of others... What a foolish thing. A last-minute reverse idea.
My entry for ReverseComp.
Based on the 1970 font Pioneer designed by Tom Carnase.