You nailed SoTN vibes. I'm slowly inching my framework to meet that, but you really hit the nail on the head on this one. Music and art meshed completely. I mean this is definitely a 5 star across the board entry for me. Its almost hard to offer some critical feedback, but I think I found at least a couple points I wanted to address.
- Boss difficulty may have been just slightly too high. For the first boss, I had to get all the health powerups before it became easy enough to designate move tells. It took 3 attempts to beat him.
- The nukes dealt crazy amounts of damage. It took a few deaths to realize that I should just focus on evading everything and letting the nukes do all the work.
- After the above points, the Death fight wasn't too hard, but it got down to the wire to beat him on my second attempt
- Map. I'm pretty sure I explored all the rooms except the one doorway that is under the savespot before Death, based on everything else, I'm going to assume it held another max health powerup. But back to the map, I think if you had one more room, I would have lost track of where I had been and haven't. That I would have counted against you, but you managed to slide by there.
- Title - I love it, and I love the whole train sequence, but that's pretty much it concerning trains. So the title is a little misleading in what I expect to experience. And I completely did not expect nuclear explosions haha
Overall, definitely well polished and since SoTN is my favorite Castlevania, I really appreciated the influences from that such as Alucard's movement trail, Death taking all your stuff in the beginning, the Fight with death essentially being the exact same mechanics, and even death animations were so similar.
Super congrats!