The Hollow Earth Hypothesis

Guide Professor Rickamex of the Miskatonic University to find an ancient scroll has been buried on a remote island off the coast of New England. The scroll is said to be a map of a world inside our Earth - the Hollow Earth Hypothesis.

This game is a 2D platform adventure, consisting of 80 screens. There are 20 items scattered around the island to collect and each one has a special use. The island comprises of 3 ground levels, caves, and a subterranean lake. There are also 99 gold coins available to collect, for which an extra life will be awarded upon gathering 40. There are also various animal enemies that need to be avoided and bridges and gates to unlock.