Free java games for Samsung Player Mini

Hi everyone :D

I would like to download games for my Samsung Player Mini for free, if someone knows how to do it and where to find them it would be nice of you!!
I downloaded a game on Softonic for mobile, it installed but as soon as I launch it, it says "Java error" and therefore I can't start it :o

Pleeaase heelp me I want to play!! lol