Donkey Kong Jr

Slow down trick - On the 1st screen go to the 2 upper right vines. With a hand on each, keep pushing UP and the “action” will slow down.

Infinite lives - In a 2-player game, player 2 must do this trick every turn to give both players an extra life. On the 1st screen, player 2 goes to the edge of the platform (where you start), as far as possible without falling. Wait until a blue snapjaw comes down the vine, and jump at him, hitting him the same time he hits the water.