I spent hours examining it, its an unlocked 60 FPS. NullDC can easily recognize locked and unlocked framerates. The whole game isn't 60 FPS for sure.
This is another game that runs at an unlocked 60 FPS. The video was captured from real hardware:
https://www.youtube.com/watch?v=8TXKtvkmR6o
Kamahl is a pretty active and knowledgeable member on here(you might not of heard of him), but he said the main thing that separates Dreamcast games with PS2/GameCube games is the weaker shadows and no post-processing effects. I've started to realize hes absolutely right. Theres not much developers could do about the weaker shadows, but the post-processing effects would've started to be used more in games in 2001 and after. I remember reading on a gaming site that Skies of Arcadia was the first game to ever use bloom when it was released in late 2000. That does seem pretty accurate but it might not be. It also explains why Dreamcast games rarely use them, the bulk of Dreamcast games were released in 1999 and 2000.
This is very useful. I take it you couldn't get 3D Ripper or Ninja Ripper to work with relatively modern PCSX2 versions?