Monster YOYO is a free Android game developed by LIGUOREN in the action subcategory. The game is set in a fantasy world full of monsters, where the player controls a traveler and their monster friend to defend other monsters by Yo-Yo attack. The game allows the player to collect more monsters and upgrade their Yo-Yo for better attack ability.

The game is developed by a two-men independent team "UR" within two months and is currently available in the DEMO version, which only has fighting mode. The developers are looking for comments and support to improve and release the final version. The game is supported on both iOS and Android platforms and is completely free. Players can join the Facebook Fans club or visit the website to know more about the game. However, there is no need to contact the developer for feedback or suggestions as they are already seeking it.