Yeah, sorry. We realized a little too late the game might be too confusing so we didn't have time to add a proper tutorial. Here's a little explanation in case you wanna give the game another try.
The error noise can be caused by a couple of things:
- You tried to activate a system (numbers 1 to 6) when there was already an active system. You can only have one system working at once, so you need to turn off the last system you used if you want to use another one.
- You tried to use a door in a room which had a broken door (blinking red), or had something inside it (player or an enemy). You can only use doors in rooms that are empty and have a working door.
- You tried to close a door while the door fixing system (system with a wrench icon) was active. You need to deactivate that system if you want to use doors.
- You tried to use a bait (numbers 2 and 3) while they were deplenished (button was orange). You need to use the bait fixing system (number 6) to replenish your baits before you use them again.
- You tried to have more than 5 doors closed at once. The limit is five, you need to open one if you want to close another (In retrospect, we probably shouldn't have put that limit in the game :p).
Thanks for the feedback! A lot of people seem to have run into that problem so I'll add an explanation of the error noise to the game's page.