It would appear that SEGA should shoulder more blame for Sonic Boom: Rise of Lyric‘s downfall, not least for releasing the Wii U exclusive before it was ready to play.
Doctor Cupcakes has spoken to former developers at Big Red Button Entertainment that had worked on the Wii U game, which begins by sharing that the reveal trailer was running on more powerful PC hardware rather than Nintendo’s console – sidestepping legal issues by stating that it was “in-engine footage.”
Those woes continue with tidbits that Rise of Lyric’s development never reached a point where it even rivalled that seen in the reveal trailer. When SEGA and Nintendo struck an exclusivity deal, it was entirely unexpected and Big Red Button struggled to port their work to Wii U as it wasn’t natively compatible with CryEngine 3.
With no time to rebuild, the team was also hampered by the Wii U requiring to reserve memory to stream to the Wii U GamePad. Whereas six day weeks and unrelenting crunch time led to developers leaving and being laid off by the company before Rise of Lyric even saw release.
I’d say that Sonic Boom: Rise of Lyric suffered more from a creative standpoint rather than entirely performance-based, but there you go. This at least partly explains why it was such a calamitous mess.