[3] The later games (Jungle Lord, Pharaoh, Solar Fire, Grand Lizard) feature a variable type magna-save in that the magnet is energized as long as the player likes (up to the time they have earned); on Black Knight the machine controls the magnet time (adjustable by the operator from three to ten seconds).

The sequel to Black Knight abandoned the variable magna-save which had become standard at that point and reverted to a fixed time.

Black Knight was not the first game to have electromagnets installed - an earlier example is Williams' Electronics Gorgar (the first "talking" pinball game), which features an area of the playfield that when hit, holds the ball on an electromagnet for a second or two while a speech call plays.

Other notable features of Black Knight are a loud riding bell instead of the old familiar knock when a special (free game) was won, three ball multi-ball that did not require any previous targets to be hit before allowing balls to lock, and random score targets.

Black Knight 2000 was also released as a licensed table on The Pinball Arcade.