Extra missiles and grenades for Die Hard 2
Press ESC to pause the game, then hold down the R and 2 keys while typing the code: Right, E, Left, O, A, Down, E. If you entered it right the game will unpause automatically.

Weapon select for Die Hard 2
Press ESC to pause the game, then hold down the R and 2 keys while typing the code: Right, Up, Down, E (repeat for different guns) If you entered it right the game will unpause automatically.

50 of each weapon in Die Hard 1
Press ESC to pause the game, then hold down the R and 2 keys while typing the desired code: Right, E, Down, O. If you entered it right the game will unpause automatically.

Infinite lives for Die Hard 3
Press ESC to pause the game, then hold down the R and 2 keys while typing the desired code: Left, O, Up, Down, E, Right. If you entered it right the game will unpause automatically.

God mode for Die Hard 1
Press ESC to pause the game, then hold down the R and 2 keys while typing the desired code: Right, Up, Down, E. If you entered it right the game will unpause automatically.

Weapon select in Die Hard 1
Press ESC to pause the game, then hold down the R and 2 keys while typing the desired code: Right, E, Down, O Right, Up, Down, Down, E, Right (repeat for different guns) If you entered it right the game will unpause automatically.