If you want fast paced action with addictive simplicity Shurican ticks all the boxes. Tap your way through difficult courses filled with crushing spikes, lethal turning cogs and a lot of fire. 
Firstly, ninjas! I personally love anything to do with ninjas. Everyone at some point has wanted to be a ninja, I just love them. They're fun and cool with neat little outfits, and in this game awesome facial expressions (of what you can see that is).
Secondly, speed. You are sat in a shop waiting for someone to come out of the changing rooms and have some free time to spend, I can guarantee by the time they exit you will have died umpteens times (if you are as bad as me) and certainly progressed a few levels. If you only have a minute or half an hour, you can play this game and can enjoy it to its full extent.
Thirdly, ease of play. It's beautifully easy yet addictive at the same time. You constantly tap to keep your ninja airborne, but tap too much and you will go too high, straight into an evil ceiling of fire (that's how I mostly die) or whatever nasty contraption you are trying to avoid that you are guaranteed to hit on your way back down. If you stop tapping - you plummet to your death. If you tap too much - you are probably going to die anyway! It takes time and patience but it's addictive quality begs you to come back for more, no matter how many times you die.
Fourthly, graphics. I really do like the graphics, they are uncomplicated cartoons and full of character with bright colours, especially with the blood splatter that you accumulate. Every time you die you leave a new blood splatter which marks your demise and a point to aim past. The background isn't too busy and distracting and you do feel like you're in some secret training dojo hidden underground with the brick walls and fiery outlines.
Those blood splatters are like my badges of honour!
It's an easy to play tapping game that you can play anywhere with a variety of levels and even a leaderboard (should you want to share your progress). You eventually run out of turns and are offered the option to view an advert to get more lives. I was greeted by a quick advert which I soon clicked off and boom - back to playing once more. You don't have to look if you don't want to and can easy come back later. But I have to stress I died a lot before I even ran out of lives (and you don't have to pay anything to buy more lives like some other games I have played - win!)
I would definetly recommend this one, it's bright and fun with colourful explosions that greet you every time you die with a healthy blood splatter too. Just be warned, you will get addicted!
Check them out on twitter here or on their website
Game available for android and IOS
Over and out, Mel