Yarn Out 3D

A game with hidden missions and time missions. Hidden Missions: 5 stages: 1000 diamonds 25 stages: 14500 diamonds 50 stages: 14500 diamonds They are generally easy to clear and not intentionally difficult. If you're really stuck, you can watch an ad to pass. Also, there are no ads popping up during gameplay. Some games are really annoying with ads popping up after just two or three clicks, but this one only shows them after you finish a stage.

The art style is a bit cuter than the one from 'Unscrew'.

I saw a hint that said to accumulate gold coins beforehand and use them to clear the later stages~ From stage 30 onwards, I cleared stages by watching ads. After reaching stage 45, I used all the accumulated gold coins at once to break through to stage 50.

Yarn untangling game, seems like a variant of Unpacking/Nut & Bolt. There's a 15-minute timed mission, and watching ads gives rewards. There are hidden missions: Initially, promoting to any rank gives 1000 gems. Reaching level 5 gives a reward, likely 1000 gems. Reaching level 25 gives 14500 gems. Reaching level 50 gives 14500. Each stage only has two slots for yarn, and extra slots can be unlocked by watching ads. Watch ads when you're stuck.

Killing time, fun, recommended.

Got the 50-stage quest gem from the hidden quest 🤪

The game is easy

If you play every day, your gems will gradually increase, making it easy to clear stages. The time spent watching ads when stuck isn't too long; sometimes it's a picture matching game, so it doesn't take much time.

Let's get some gems from the hidden quest👍 It's pretty short, gotta rush it😶

If you're lucky, you can finish a round without watching ads. It's a pretty decent casual game.