If you are a fan of the first game, then Five Nights at Freddy's 2 will surely keep you satisfied. FNAF 2 has more unlockables, more animatronics to watch, new mechanics, minigames, and even cutscenes between the nights which paint a picture of the vague story Scott Cawthon tells little by little. If you follow the lore or have played any of the other games in the Five nights series, then I recommend this game for you.
Mouse – Navigate
Left Mouse Button – Interact
From 12 to 6, you must fend off the animatronics from coming to your door and putting an end to your night. But how? Tactics in the games vary- This game has you shut doors and flick on lights to prevent them from coming in.
Shutting doors blindly will get you nowhere, and shutting the lights may be required to check for animatronics. And you may not like what happens if on the later nights you keep both doors closed...
You can also monitor the building, to check on the animatronics before they attack. Check out a guide I made on how to win.