Loved playing! I do not have good reflexes for platformers, but I was getting better at working with the bullet fire patterns with each run through. I liked the clear distinction between platforms that could block bullets versus not. The music was a great vibe, and having voice comments on actions/events was surprisingly helpful (not something I would have expected).
Note: I regularly got stuck on the sides of the X blocks that can stop bullets, meaning I would jump into the sides of them but then stick there and slowly slide off. I would expect to simply fall so I didn't get my timings messed up.