The point scoring system is not explained anywhere. Tap on a group of 1's and you will score that number of points and they will turn into a single 2 - at the spot where you tapped them out.
Suppose you tap on seven 3's. You will score 21 points. Straight forward. But now we come to scoring with a chain. First tap on some 1's. They will become a single 2. If that 2 is part of a group of 2's, then you will get double the points. If that group of 2's becomes a 3 that forms a group of 3's, then you will get triple for that.
However, suppose you start your chain with the 2's. When you tap on the 3's you will only get double the points.
Strategy: you definitely want to build up to get a chain of 5's. But your moves are limited.
WonderCube is all about building successive chains.
See the row below the grid? You can swap those tiles when necessary. However, doing so will break the chain scoring.
Regarding the graphics - yeah, they're geared to the youngsters. There are numerous opportunities to buy your way out of a level.
Bottom Line: WonderCube is actually quite serious. There are 50 levels and I'm stuck on 11. Why? Because after level 10 there's an 'energy' level. I only got 1 star on that and cannot try again for another 7 hours. Unless I buy some energy for $.99.