▁trick ▁was ▁invent ed ▁on ▁vert ▁by ▁Neil ▁Bl ender ▁in ▁ 1 9 8 5 ; ▁an ▁early ▁proto - version ▁can ▁by ▁witness ed ▁in ▁Pow ell ▁Per al ta ' s ▁second ▁video , ▁Future ▁Prim itive , ▁during ▁Bl ender ' s ▁brief ▁came o ▁appearance ▁on ▁L ance ▁Mountain ' s ▁back yard ▁r amp . ▁▁ ▁Sug arc ane ▁gr ind ▁The ▁Sug arc ane ▁is ▁an ▁al ley - oop ▁ 1 8 0 ▁into ▁a ▁f ak ie ▁sm ith ▁gr ind , ▁and ▁a ▁ 1 8 0 ▁back ▁out , ▁landing ▁in ▁the ▁original ▁st ance . ▁It ▁is ▁a ▁similar ▁motion ▁to ▁a ▁lips lide ▁( where ▁the ▁back ▁tr uck ▁must ▁pass ▁over ▁the ▁obst acle ), ▁but ▁over - rot ated ▁so ▁that ▁the ▁back ▁tr uck ▁lo cks ▁on ▁the ▁obst acle . ▁▁ ▁Nov ac ane ▁gr ind ▁The ▁Nov ac ane ▁is ▁an ▁al ley - oop ▁ 1 8 0 ▁into ▁a ▁switch ▁fee ble ▁gr ind , ▁with ▁a ▁ 1 8 0 ▁back ▁out , ▁landing ▁in ▁the ▁original ▁st ance . ▁It ' s ▁a ▁similar ▁motion ▁to ▁the ▁Sug arc ane , ▁but ▁instead ▁of ▁landing ▁the ▁back ▁tr uck ▁on ▁the ▁obst acle ▁in ▁f ak ie ▁sm ith , ▁the ▁front ▁tr uck ▁lo cks ▁on ▁in ▁switch ▁fee ble . ▁▁ ▁Note - ▁Two ▁missing ▁" c ane " - type ▁variations . ▁The ▁al ley - oop ▁