Adventure Island

The power-ups are interesting, and provide the key motivator. Taking the form of eggs, when they are bumped into, they reveal themselves. The most common is the axe, always gathered first to provide a means of attack. But if Harry runs into other eggs once he has the throwing axes, he can gather further power-ups at the same time, such as riding a skateboard that not only moves forward quicker but also means he can now take an additional hit without dying; or the fairy mentioned before, which provides added protection and a temporary period of differing music. The idea is to make players want to see how many power-ups they can continue getting in a row, until they build into this unstoppable SuperHarry and crash through to the end of the level.

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