Really cool game! Capped it off at 16630 cos i assume it's endless.
I LOVE the soundtrack. Those bitcrushed drums are going hard lol. and the dynamic transitions into and out of the pyramid HIT so well. I'm a little... skeptical this music is possible on an NES given some of the sounds and definite presence of stuff like reverb but it sounds FANTASTIC
My biggest difficulty was not being able to jump while rolling, even though jump+roll was an expected move. Whenever I died it was always a very tight jump.
I gotta say that transition into the pyramid was SUPER impressive, slick and unexpected in a really good way.
NESwise I think you did a great job with the palette limitations and art. The multilevel parallax as it is likely isn't possible and some of the color blending in the pyramid might be too smooth but overall I think it's very doable.
Overall though it's super fun and definitely leaves an impression, great work!!