Mega Points, often abbreviated MP, are a kind of "currency" in Mega Jump. 10 MP are obtained each time a player attains 100 coins. MP can be used to unlock Stages, Characters, and Powerups. One can also spend them on Save Stars.
You can also buy MP from Get Set Games. These purchases are the developers' only way to make profit, so buy them to support the programmers and receive a nIce reward.