Bugs and cheats listed below can be replicated on a device without the need of cheat tools.
Bug: When you play against Grizzlies of National Division II, if a player of Grizzlies is shown a yellow or red card, you'll see "Strickland #x (player's number) is shown a yellow/red card" instead of "Grizzlies #x is shown a yellow/red card" on the screen.
Bug: At the start of a new game, the coach introduces himself and says his name is Manly; however, the starting coach is always "Hartford L".
Cheat: More than one player can have the Captain skill at one time.
Hire a normal player (not a Friend Player)
Set the Captain skill for the hired player
End Game or Transfer Data
Start a new game
Set the Captain skill on a player
Hire the old player that had the Captain skill (make sure to hire after you set the skill on a new player).
Now both the old and new player should have the Captain skill! You can repeat this multiple times, with potentially everyone on your team having the Captain skill.
Cheat: Free Coin
make sure you have the apk of the latest version and 10 friends in your friend list
Save your game
Open the title screen, at the bottom right corner select the game data share icon
Select send game data
Screenshot or write down the code
Uninstall the game
Install the apk again
Select the game share button and then select receive game data, enter the code
After loading is done, refresh your friends list and finally continue your game
Walla you will be offered coins for making friends, you will get 90 free coins each time repeating the whole process