今年でドリラー20周年だし
この2002年のカレンダーと曜日が合うね

https://ps2media.ign.com/media/news2/image/drillercal/driller_janfeb_1024.jpg
https://ps2media.ign.com/media/news2/image/drillercal/driller_marapr_1024.jpg
https://ps2media.ign.com/media/news2/image/drillercal/driller_mayjun_1024.jpg
https://ps2media.ign.com/media/news2/image/drillercal/driller_julaug_1024.jpg
https://ps2media.ign.com/media/news2/image/drillercal/driller_sepoct_1024.jpg
https://ps2media.ign.com/media/news2/image/drillercal/driller_novdec_1024.jpg