Party UP is a free Android game developed by We Fun Interactive that takes you back to the disco era with its retro-style design. The game's objective is to keep the party going by bouncing a mirror ball over various obstacles like roller skates, headsets, pianos, notes, turntables, and audio equipment.

As you dodge and destroy these obstacles, you can collect various items like ball weight upgrades, bombs, magnets, bullet speedups, and fever, which add to the fun and excitement of the game. Additionally, you can choose to play with different characters and items to keep the game fresh and enjoyable.

Overall, Party UP is a fun and addictive game that will keep you entertained for hours. With its retro disco concept design and various obstacles and items, it's a perfect game for those who love the disco era or just want to have some fun.