How i beat the last boss: use laser with fully upgraded side lasers and defense, when he uses pulse, the V, or the bullet spam, stick to the left side of the screen just under the tip (if you click the game tab the y value is just under the favorites button) the only time you'll actually need to move is for the rockets, which you can dodge by doing a U shape along the sides and the bottom of the screen. your side lasers will eventually kill it and the defense laser will reduce the damage u take
Click and drag up the white screen at the movie theater to find the secret door.
The bank is a place to store your money, although there is interest (5%) per 5 minutes.
Fishing spot is a place to fish, which can be sold in the market for money.
Casino is just for gambling money, but the odds aren't very good.
Whale farm is just for lazy people to get whales by using goldfish and waiting 10 minutes
Whack a seal is just for exp (2*combo).
Catch a snail gives a little exp (1 each) and is good for getting a lot of snails.
Skool gives exp for answering questions (equal to the difficulty level) and there is also a box that you need the key from the mice for.
Burger Ping is just a place where you can cook burgers to sell with the upgrade or feed to your goldfish in your farm to reduce the time by 100 seconds (2 exp per burger).
Target range is just for exp (20*combo).
 "Idle Mine"){kind=icon}
 "Crystal Story II"){kind=icon}
 "Battle without End"){kind=icon}
 "Akaneiro"){kind=icon}
 "Reactance 2"){kind=icon}
 "Reactance"){kind=icon}
 "Doodle God 2"){kind=icon}
 "mini Tower Defence (mTD)"){kind=icon}
 "Infectonator 2"){kind=icon}
 "Luminara"){kind=icon}
 "IntoSpace!"){kind=icon}
 "Neon Race 2"){kind=icon}
 "Knightmare Tower"){kind=icon}
 "Anti-Idle: The Game"){kind=icon}
 "The Idle RPG"){kind=icon}
 "Pingy the Ping Idle RPG"){kind=icon}
Haven't played Fate personally, but we'll take your word for it. We're trusting like that :)