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We study both experimentally and theoretically the driven motion of domain walls in extended amorphous magnetic films patterned with a periodic array of asymmetric holes. We find two crossed ratchet effects of opposite sign that change the preferred sense for domain wall propagation, depending on whether a flat or a kinked wall is moving. By solving numerically a simple ϕ^4-model we show that the essential physical ingredients for this effect are quite generic and could be realized in otherdoi:10.1103/physrevlett.100.037203 pmid:18233032 fatcat:tovfxkpq4zgzlf22oxbfh7z4zu