You can modify the save files! That's even better than cheats. You'll just have to open them with notepad (or textedit on mac)
WINDOWS:
C:\Users\<user>\AppData\LocalLow\<company name>.
ANDROID
/storage/emulated/<userid>/Android/data/<packagename>/files
MAC
~/Library/Caches folder, or ~/Library/Application Support/unity.company name.product name.