Successfully complete the indicated task to unlock the corresponding feat and an associated clothing item for Master Higgins:
| Fancy Flyer | Fly for ten seconds. |
| Rock Breaker | Destroy 50 rolling boulders. |
| Treasure Hunter | Find all hidden eggs in all stages. |
| Adventure Island Hero | Overcome the final boss. |
| Master Chef | Kill 50 DenDen (minor enemies). |
| Mr. 16-Shot | Realize 16.0 or higher in Rapid Fire Ruins. |
| Watermelon Thief?! | Pick up a watermelon in ten different stages. A watermelon appears if you pick up all other food in a stage. |
| Weapon Acquireor | Fully upgrade all three main weapons and buy the two additional ones. |
| Action Star | Successfully complete ten different stages without taking any damage. |
| Perfect Shooter | Realize over 30,000 on Axe Attack. |
| Adventure Island Pro | Successfully complete the special stage. |
| Island Harvest | Realize over 1,500 on Fruit Grabber. |
| Speed Boarder | Finish Skateboard Survival in under 40 seconds. |
| |
| Gladiator | Kill every type of non-boss enemy in the game. |
| Melon Maniac | Acquire all 100 Gold Melons. |
| |
| Weaponless Master | Successfully complete a level without having or picking up a weapon. |
