Thank you for commenting ! Happy to hear you saying that the CO-OP is an interesting concept. We wanted to make this fan game a CO-OP multiplayer because it is something that we couldn't find in other fangames that trully tries to replicate the original fnaf feeling.
Very happy to hear you enjoyed the game, we'll update it mostly for bug fixing and adding small bits, and if we deem it possible, we'll add a better way for multiplayer connection.