Guitar Hero - On Tour - Decades (Diplodocus) ROM download is available to play for Nintendo DS. This game is the US English version at EmulatorGames.net exclusively. Download Guitar Hero - On Tour - Decades (Diplodocus) ROM and use it with an emulator. Play online NDS game on desktop PC, mobile, and tablets in maximum quality. If you enjoy this free ROM on Emulator Games then you will also like similar titles Guitar Hero - On Tour and Guitar Hero - On Tour - Modern Hits.