How to fix Minecraft pe on android?

I just got Minecraft on my android and it's acting really strange. I ll try to move and the up arrow key won't work and it will move randomly.

Jill 01.11.2015

What kind of device? Also, I would need to know what version of Android it is running. For Best Protection install Leo Privacy Guard to your Smart Phone, is good app protector, Keep snoopers away from private pics, videos, SMS and call log.

Joesph 03.11.2015