for those stuck on a level, you just need to grind for better letters. Don't give up just because the spiders took the papers. You can still kill others and get more letters.
this repeated list could be improved into a real-time checker. usually I don't have time to look through the list, and have to have the words I used memorized
 "Valthirian Arc"){kind=icon}
 "Mechanical Commando 2"){kind=icon}
 "Starmageddon"){kind=icon}
 "Balloon in a Wasteland"){kind=icon}
 "Bloons Tower Defense 4"){kind=icon}
 "Areas"){kind=icon}
 "Submarine Vs Aliens"){kind=icon}
 "Penguin Massacre"){kind=icon}
 "Clockwords: Prelude"){kind=icon}
 "Elona Shooter"){kind=icon}
 "Stick War"){kind=icon}
 "Alice is Dead - Ep 1"){kind=icon}
 "Medieval Rampage 2"){kind=icon}
 "Penguinz"){kind=icon}
 "Mytheria"){kind=icon}
 "HDOS Databank request 01"){kind=icon}