Several New Sonic Beta Builds Uncovered

Several new Sonic beta builds on an NDPD cartridge have been dumped by MSX. The builds were found years ago, but have now been dumped and released.

A near final build of Sonic Riders has been dumped. Several builds of Sonic Heroes with minor graphical differences, unfinished features, different stage lengths for Team Rose, and development tools such as a debug mode have been dumped. A Japanese demo build of Shadow the Hedgehog has also been dumped which features a small selection of stages. These builds are all for the Nintendo GameCube. The builds are available to download at Hidden Palace.

https://hiddenpalace.org/Sonic_Riders_(NPDP_prototype)
https://hiddenpalace.org/Sonic_Heroes_(NPDP_Prototype)
https://hiddenpalace.org/Sonic_Heroes_(NPDP_Prototype_2)
https://hiddenpalace.org/Shadow_the_Hedgehog_(Trial_Version)