Use any hex editor apps in android change the value of HEX C5901942 Dword to any amount of Coins or Gold you want, example 999999. If the codes doesn't work (it might be the android version is the problem), you can do it manually. To do manually, just increase your Coins or Gold to atleast 3 digit number. Example 444, use hex editor app and use the search function. enter your current Coins or Gold and search (DWORD) for it. You can now change the value for any amount you want.
How to play without annoying ads? No Ads Cheat
Playing Snowboard Run app is very annoying because it has intrusive ads, some ads may pop at random times, other ads will consume the screen space. However in this cheat, you can play Snowboard Run app without annoying ads :)
You should turn your wifi off before you launch the Snowboard Run app. In-case you already open the Snowboard Run app, just force close or use the multitask button and swipe it out.