The zombies are invading the forest! Fortunately, you’re VERY fast at building walls. Can you keep all the villagers safe from the zombie horde?

After a late night working in the lab, you looked out from the balcony and found an eerie sight! Three types of local monsters have begun arranging themselves into groups. The rules seem pretty simple, but where will the rest go?

It’s the spooky season, and what’s more spooky than a darkened hallway? Place jack o’lanterns to light up every cell in the grid. Use the mirrors to your advantage.

Can you solve a jigsaw sudoku puzzle with invisible walls? The sudoku part might be easy enough – fill in the grid with numbers and don’t repeat them in any row or column. However, you also can’t repeat them in an irregular region that you can’t see!

You’ve been hired to examine a warehouse that’s rumored to be haunted. Your meter shows the total number of ghosts it detected. After a few short-range tests around the warehouse, you think you can exorcise them all now.