Banzai Bill's Mad Mountain is a board in Mario Party: Island Tour. This board features Banzai Bill as its main hazard. The 6 on the die is replaced with a Banzai Bill icon. If rolled, this will launch a Banzai Bill, which will knock anyone in its path to either the start or the halfway point.
| Description | "Should you go for the glory or hide out? Banzai Bill will test your luck and courage!" |
| Play Time | 15-30 Minutes |
| Skill | 1/5 |
| Luck | 5/5 |
| Minigames | 4/5 |
