From the most favorite to the least:
Street Fighter IV Champion Edition - https://play.google.com/store/apps/details?id=jp.co.capcom.sf4ce
Type: Fighting
Why: Because it looks and feels almost exactly like his PC counterpart and it is the best Street fighter 4 version to date with all the available characters.
cost: paid appSuper Mario Run - https://play.google.com/store/apps/details?id=com.nintendo.zara
Type: Platformer
Why: Because its mario first of all :) also, it is played only with one finger which is very convenient and even my 3.7 years old son can play and enjoy. The graphic is very slick and there is a nice variety game modes to play .
cost: you can play the free version for a few days but eventually you will need to pay to be allowed to continue playing and also to access all the levels.Dancing Line - https://play.google.com/store/apps/details?id=com.cmplay.dancingline
Type: Rhythm game
Why: Very original Rhythm game in which you play a kind of a snake which needs to go through walled obstacles without out touching the walls. Like mario, this is a one finger only game and the snake automatically goes to the upper right direction. When you touch the screen the snake goes to the upper left direction, if you touch again the snake will go back to his original upper right direction. This is very simple and yet very challenging as the obstacles become more and more tight and in between with alot of surprises on the way but there is a nice checkpoint system which keeps thing less frustrating . Every turn the snake does is in the Rhythm of the music and the music is very relaxing. This can be considered as a meditative game in my opinion.
cost: free
