* AcclaimedFlop: Despite positive reviews, the game didn’t sell that well.
* StillbornFranchise: The game failed to meet Sega's expectations, and no sequel has been announced since then. Its iOS adaptation was also terminated by mid-2015. The only acknowledgements Sega has of the game was a cameo in the company's VanityPlate for [[Film/SonicTheHedgehog2020 the]] ''[[Film/SonicTheHedgehog2020 Sonic the Hedgehog]]'' [[Film/SonicTheHedgehog2020 movie]] and "Theme of Phantom R" being a hidden CD track in ''VideoGame/LikeADragonInfiniteWealth''.
* WhatCouldHaveBeen: The game was originally meant to be a title for the Nintendo DS. Here are some [[http://p.twpl.jp/show/orig/mjNsb screen]][[http://p.twpl.jp/show/orig/47WJK shots]] as proof.
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