tCrystal is the games premium currency and the one that you will be spending most of your time longing for. Is very hard to come by and even though it's possible to get it into by playing the game, you will not get near the right amount that you need to get pretty much anything in the game. The worst thing is that pretty much everything requires these tCrystals and that without a cheats you can't really hope to get anything from this game.
That is unless you're willing to cash out and pay for these tCrystals with your real-life money and since you are here, reading guide on how to get tCrystals easily, I will take a wild guess and say that you're not. So what can you do instead?
Well there's always grinding. You can play the game like a man possessed and hoping that one day, eventually you're going to have enough of the tCrystals to get what you're going for and then after you do that, go for another run on to the get the next thing that you want. Of course, this would be extremely time-consuming and only somebody who plays only Call Of Mini Infinity and is pretty much nothing else in their free time would be capable of such feats. The rest of us, I'm afraid it will have to rely on things such as Call Of Mini Infinity tCrystal cheats.