Little help

[enjoto]

I want to make my own game but i cant when i make the character i make him when press LEFT to go left and to change the animation into walking left but when i press left it stays in the same place it just changes the sprites and i can make only left i don't know why i make right but when i pres it nothin hapens.
And in one site (where i found game-editor i don't remember the site) i sow a text about game editor and start to read it in the text it was saying that with game editor i can make and Mobile phone games too. How can i do them ?

SORRY I AM TOO BAD WITH ENGLISH