나사 탈출단: 탈출의 비밀 풀기

Tightening screws might seem simple, but it's surprisingly brain-teasing and the jam rewards are plentiful, making it quite fun ^^

Sometimes screws look a bit creepy ^^;

As you level up, you have to use your brain to solve things, so it seems good for brain training.

와!1빠 몇번했는지 까먹은