Controls feel good, I liked the ending animation and the difficulty is appropriate, imo. However, the contrast between the frame of the bar and its filling is too low (at first, I thought it had a bug and wasn't changing, but ended up giving it another try with a sharper eye after not finding a comment that addressed the issue). Along the same lines, some GUI warnings for when the bar was too low or too high would have also been useful.
Overall, a decent entry, so good job, mate 🤝