An absolutely terrible game, worse than Sonic Adventure, glitchy, absolutely puerile voice acting and writing, GLITCHY, difficult to control, nonsense shooting levels, abhorrent emerald quests, obnoxious music, massive focus on the homing attack to make up for fundamental control and design deficiencies, BOOST BOOST BOOST, utterly stupid intrusive and continuous soundbites and cut scenes, GLITCHY and BATS WITH TITS. Its better than Shadow/2006 but that's not exactly any form of compliment.
The game hasn't aged badly because it was shit on day one. It will sell, but to people who may wish they had not chose to relive their childhood.
That Sega devote resources into re-releasing this terrible game over some of their transcendent Saturn back catalogue is a sore point, it will probably sell though.