I'm here for the Banjo-Kazooie vibes! The first thing I did was enable the googly eyes ;)
The handling of the marble and the sound design are spot on. Each material feels different and just right. At first I was worried it would be more of a platformer than a metroidvania, but the world quickly opened up and felt interconnected. The puzzles were pretty good too.
I greatly enjoyed my time with this entry, though I felt lost after the gyroball. There were a few puzzles in the cistern I couldn't solve but it didn't feel like the gyro was the answer to any of them... But I would have definitely persevered if I had more time. Great job!