On Hard your towers cost more than normal, the Bloons move faster and you have 100 lives only. Beating round 85 in hard difficulty awards you a gold medal for that track.
| Game | Time | WPM | Accuracy |
|---|---|---|---|
| 2421 | 2020-03-04 20:11:17 | 81.22 | 97% |
| 141 | 2018-10-26 18:08:17 | 61.92 | 97% |