Version 2 of the mod has been posted, mostly aiming for compatibility with A13 devices. Version 2 may not be compatible with emulators.
Feel free to check it if you have any trouble with the main version nevertheless.
Depends. If you use it to beat a stage that your team could probably beat but maybe you were having bad runs, then no ban.
If you use mod to get 1st place in all the leaderboards? You will be banned super fast. Leaderboards are for whales and no company likes when you mess with $$$.
Make second account to try mod and you will see, no risk of ban until you go crazy and do things you shouldn't.