Blackboard the Pirate

Blackboard the Pirate is a chalkboard-shaped enemy of Pirate's Cove from the classic, short-lived kids game show called Nick Arcade.

History
From Mikey's perspective, he can see him walking towards Mikey with a sword that has a ruler instead of a sword blade in his mouth. As he takes the sword blade out of his mouth and orders Mikey to "Walk the plank, you scallywag!" before jabbing the screen with his sword.

Trivia
The character's name in general is a spoof of Blackbeard the Pirate.

Show appeared
Nick Arcade (1992-1993)

Links
Blackboard the Pirate @ Nick Arcade Wiki

Blackboard the Pirate's animation @ Youtube