Viaje al Centro de la Tierra: Extended Version

Viaje al Centro de la Tierra: Extended Version is a Spanish video game developed by Beyker Soft and published by Topo Siglo XXI in 2007. The game is categorized as an arcade action game and is playable on ZX Spectrum 48K and ZX Spectrum 128K. The game features new levels 4 and 5. It can be loaded on Sinclair Spectrum or compatible models of 48K and 128K. The game can be played using either a keyboard or a Kempston joystick. The keyboard controls are customizable in the loading menu. In level 4, players can switch between three characters using the keys 1, 2, and 3 on the keyboard or the fire button on the joystick. Viaje al Centro de la Tierra is a production of Team SigloXXI, with Alfonso Fernández Borro as the producer, Manuel Ferreira Moreno as the technical director and programmer, Alfonso Fernández Borro as the graphics designer, Sergio Vaquer as the music composer, and Alfonso Azpiri as the cover artist. The game also includes beta testers and acknowledgments to the people who supported the project.