Mobile Game Design (Charge) As a concept this is very interesting and is also entertaining to boot. It could use a little more polishing on the execution side, though. If you don't mind I have a couple of suggestions that could improve the user experience.
1. The ripple effect in the main menus are neat, but they are also detrimental to the user experience. If you want to keep the effect then just lighten up the background so that the user can see the buttons they need to push in order to adjust settings or start the game. Having menus where you can't even see anything without repeatedly tapping is a huge no-no.
2. Increase the tutorial text size or make it bolder. While it may look fine on a PC the text will be very difficult to read when on a screen that's only several inches across. This also ensures the text will be large enough on phones with smaller screens. Also, I noticed it was easy to skip the text when I was trying to jump over an obstacle. Instead of double tapping the screen to continue, I would just place a button in a corner that you have to hold down for a second. This ensures that the user doesn't miss any information.
3. Speaking of the tutorial, I would suggest making it the only level that isn't completely dark. So that the player can see what the obstacles look like and get a feel for when they need to jump. Of course implementing a section of the tutorial where there is a "blackout" and they have to use the charge for a short time would be cool too.
4. Another suggestion would be to increase the radius of the glow around your character slightly. Or perhaps have a difficulty slider that adjusts the radius of the glow and the scroll speed of the level.
5. One last thing would be to consider implementing a score system based on difficulty (if implemented), the time survived on a level, obstacles hit, things like that. While the game play is entertaining enough on its own it doesn't really feel like there is a "purpose" to it. A scoring system would give players a way to measure their performance and give them that motivation to keep playing.
Overall it is a cool concept. It just seems a little bare and unrefined at the moment. I'm sure once the kinks are ironed out it'll be a great little game!
Minilo 
