Continue
Enter the left cave in the first stage of the third level of Fern Isle. Continue game play until reaching the fourth skull. Jump up and down to find a bonus room and collect the "Hudson Bee". When game play ends, hold Left and press Start to continue from the last stage with all items.
[Submitted by:DaWobblinGoblin]

Extra items
Enter 0894 for 99 of each item.
[Submitted by:DaWobblinGoblin]



Level select
Press Right, Left, Right, Left, A, B, A, B at the title screen, after Higgins gets hit by the coconut, to access a world select menu.
[Submitted by:DaWobblinGoblin]