Here's some guides on how to install game hackers.
First you'll need to root. Here's some guides:
samsung galaxy s4: http://forum.xda-dev...d.php?t=2252248
samsung galaxy s3: http://forum.xda-dev...d.php?t=2235366
samsung galaxy s2: http://forum.xda-dev...axy-s2-t1505172
samsung galaxy s: http://androidforums...or-cleanup.html
samsung galaxy note 3: http://www.xda-devel...-galaxy-note-3/
samsung galaxy note 2: http://forum.xda-dev...d.php?t=2143479
samsung galaxy note: http://forum.xda-dev...d.php?t=2217840
HTC one: http://htconeroot.com/
HTC one x: http://www.android.g...ne-x-with-ease/
HTC one v: http://forum.xda-dev...d.php?t=1869667
HTC evo 4g: http://forum.xda-dev...d.php?t=1228566
Nexus 5: http://forum.xda-dev...o-root-t2507211
Nexus 4: http://www.android.g...google-nexus-4/
Nexus S: http://forum.xda-dev...nexus-s-t875875
Asus Padfone 2: http://forum.xda-dev...d.php?t=2030716
Asus PadFone: http://www.padfonecl...t.php?content.8
Asus Padfone infinity: http://padfoneclub.c....php?content.51
(I didn't include any tablet androids because if you ask me, tablets aren't meant to be rooted.)
NOTE: if your phone is not listed here, search "how to root [your phone] ". Try to find an xda developers one.
now that your phone is rooted, let's get SB game hacker.
step 1: search aptoide. Download it.
step 2: search up SB game hacker. Look for an aptoide link. Click it.
step 3: press the green install button.
step 4: accept the premissions. If it just says "requesting root access" go into superSU and disable knox(should only be for samsung phones) now your done!
now that you installed it, i'll show you how to use it.
step 1: go into any of your games (sonic dash, temple run 2, and angry birds go don't work with it, some others might not either)
step 2: click the wrench widget at the top left corner of the screen.
step 3: it will ask you to input a number. Input the number of coins, gems or whatever you what to change you have right now into it. It might say to make a "[number].num2change" (something like that). If it doesn't skip step 4 and 5.
step 4: change the number of whatever you want to change. For example, if it's gems, get one more gem.
step 5: click the widget. it will ask you: [the old amount of whatever you had] into [blank]. In the blank space, put the amount of whatever resource you choose you have now. Press the search button.
step 6: it should have a modify now option. If it just goes back to the input a number screen again start from step three and try again. If not, click the modify now button.
step 7: in the top box, input the number of whatever resource you want. Press modify.
step 8: it should say "modification success". TADA!!! you now have lots more coins/gems/health. Be careful, because in some online games (like clash of clans) you will be ban.
Before you go, here are some games that work with it and you won't be ban(not a full list).
Giant Boulder Of Death
Jetpack Joyride
Subway surfers
Steve hunt for budder
(maybe) Temple run (but not temple run 2)
hope you like my guide 
