4 ms·Alternatively, the one dimension of movement could be up-down.by gojomo 3y agoAlternatively, the one dimension of movement could be up-down.samstave 3y agono. its a single tunnel. no off-shoots. 1D. Cant turn. only damage the 1D path, to your advantage/detriment. Your mechanic is Gauntlet. (best video game ever)gojomo 3y agoUp-down instead of right-left would still be a "single tunnel", "no off-shoots", "1D", "can't turn", etc.