hi, i am on the third level of the game and cant jump up the ledge to cut the subway power!! is there a special key combo you need to do or sumthing? please help asap!!(i really wanna fight tx!!!)

there is no special key combo, all you have to do is go all the way down to the crashed train and then jump from ther coz the ledge at the begining is too high for arnold shortsnigga