HD games for galaxy mini and How to instal
before we install game on our galaxy mini. there is two version of games in android:
  1. only .apk file
    - for this kind of game, its easy.
    - first download the game that you want.
    - then copy the apk file that you have download into your sdcard.
    - then search your file in your android phone.
    - click to the file. then the process installation will be automatically
    - finish. now you can play your game. 
  2. the second version is game with ".apk file" and "sdcard data/cache file"
    Here is the step:
Make sure your phone is in offline mode.
(gameloft, Glu, com2us, etc ...)
To who download from PC.

  1. First install the apk file on the phone, run.
  2. Will appear the option to download the file data, "yes / no"?
  3. Do not select anything, then press the home key, leave the game running in the background.
  4. Usually the file data / cache extension is in rar / zip.
  5. Extract first, then will appear the folder that contains the data file.
  6. Copy the folder that contains the data files to (for example gameloft games) sdcard / gameloft / games.
  7. Back to the game which was running in the background, select "no" and then exit.
  8. Run the game again, enjoy ...
If the game still asks to download data, the possibility of data files are not suitable / not for the version of the game.

source: http://tutorialfor-android.blogspot.com/