Big Heart

These will increase Mike's total hearts by one and then refill all of your energy.

Bottle

A bottle that has washed ashore. Inside is a letter from Dr. J and another ID code. Luckily Mike is the one who finds this or his uncle would still be lost.

Double Heart

Picking up one of these refills two of Mike's hearts.

ID Code (1776)

Another ID code, this one found within the bottle. It readys the submergible system of Sub-C.

Snowman Doll

Freezes all enemies on screen for a brief period of time.