Pretty nice level, it's a little on the short side, but not bad.
small issues would be the tube being pretty slow, I tried to spin dash in it, or even use modern sonic to boost in it and it always being at that pace feels off, I do like the detail of the yellow boy passing by before you encounter him, when traveling in the tube.
I like the verity in the stage, a short 2D section that turns into a minecart section, I think it was nice change of pace to the earlier section being a more enclosed box, unless there is a secret act 2 I would be happy to see an act 2 of this as I think the ideas place in it are pretty cool, but after beating I was left wanting more, which is pretty good because I did enjoy it enough to want a little more, I feel a update or act 2 could really flesh it out more.
Overall it's a good level, and I can see myself replaying it to find out more hidden stuff in the map, I don't know what the game means by "I shouldn't have done that" when I dabbed on the grave as pointy sonic, very interesting and I'm hooked on finding out.
