To make it work on your Samsung Galaxy Y :
- Install Chainfire3D
- Download Galaxy on fire 2 HD installer
- Download SD DATA FILES
- Install the APK file
- Uncompress the SD DATA FILES and put it on "SDcard/Android/data/net.fishlabs.GalaxyonFire2 "
- Open Chainfire3D and and open 'Default OpenGL Settings' and tick 'Reduce Texture Quality' and 'Reduce Texture Size', open 'Use Plugin' (Just Below the 'Reduce Texture Quality' tab) and select 'QUALCOMM'
- Minimize Chainfire 3D
- Open the game. Enjoy