Duolingo

Killer
Demented Duolingo is a killer in TEOD. He is based off of the mascot of the language learning app "Duolingo". And was also a meme back in 2019.

Duolingo was 1st added in chapter 1 with his own update alongside pennyswise and freddy krueger. Was removed in a unknown update. Then came back in the VIP update alongside the addition of ghost girl and evil otto. Got a reworked killer in chapter 2. And got completly remade in the sonic.exe update and was changed to demented duolingo