Got lag? If so, this is not the game for you.
For those who don't know where to start, my first suggestion is to explore the entire map and find the secret areas, THEN grab the gems as weird things happen after you collect them. (You may notice some tiles changing design or the music change, those are the weird things which increase when you collect more gems)
The only thing that I am concerned about, though, is the robots - they occasionally fly backwards. But that might be part of the weird things.