Mega Brain Boost is a game that does precisely what it intends to do, but little else. If you are a gamer who finds these kinds of games worthwhile, then the game can feature somewhat decent gameplay, but any other gamer should not bother themselves with it.
Rarely making you feel like you accomplished very much or gained a deeper insight in how well your right brain potential is measured, Mega Brain Boost lacks all the interesting tools that Brain Age possesses.
The game claims to score brain development, but there is no baseline testing, so getting a high score at the start seems to invalidate the whole process. What are you being compared to when receiving a 100% score? In the end, this game lacks punch.
As far as effectiveness in training goes ... I don't know. I wish it had a Brain Age kind of graph in order to see how far I've progressed. I hate to say it, but there is a strong possibility that I might be a little rustier after Mega Brain Boost than before.
If you want a good, fun, and challenging way to work your mind, do yourself a favor and pick up a copy of Professor Layton. The 130-odd logic puzzles found there-in will do more for your brain than wasting time and money on a poor Brain Age knock-off.