Rotary Knife is a free arcade game developed by RLBL Games for Android devices. The game is simple and easy to play, making it perfect for anyone looking for a fun and entertaining way to pass the time.

The objective of the game is to turn the knife and hit the apple that is rotating on the screen. As you progress through the levels, the apple rotates faster, making it more challenging to hit. The game also features different backgrounds and knives to choose from, adding a bit of variety to the gameplay.

Overall, Rotary Knife is a great option for anyone who enjoys arcade games. It's easy to pick up and play, and the simple yet challenging gameplay will keep you entertained for hours. Plus, the fact that it's free means that anyone can give it a try without having to spend a dime.