V1.7:

• New environment item: barrel. You can love or hate it, but please don't shoot it!
• New weapons: Machinegun and fire bomb
• New curses: The redskin attack, and barrel nightmare
• IA improved to deal with new game elements
• Now crates can be opened with explosions and barrel fireballs
• Santa's Hideout level has been a little redesigned
• New animation for appearing crates
• New option: Items and the skulls can have the classical appearance or a "?" crate appearance

V1.6:

• New level: Santa's Hideout
• AI has been improved and now the bot is smarter
• LAN game has been discontinued (sorry!)

V1.2:

• Update 1.2 of "Duelo a Muerte" contains an option that control IA difficulty. It can be switched from EASY to KILLER skill.

V1.1:

• LAN game has been completely redesigned. Now communications use UDP packets (lag is reduced a lot). We recommend to play using wired communication because a WiFi router always introduces delay added.
• Main Menu options have been renamed
• New "toggle fullscreen" button in main menu.
• "Player VS CPU" is now the default option when the game is started by the first time.