《消滅所有開心》是一款動作射擊類遊戲，遊戲操作簡單，容易上手，玩家左右滑動螢幕就可以使主角機甲移動並自動射擊天空中落下的怪物彈球，怪物會根據重力加速度落地並反彈，遊戲的樂趣即有節奏的控制機甲攻擊怪物和完美躲避怪物的下落，最後消滅關卡中所有的怪物即算過關。

遊戲提供了多種飛行器，體驗爽快的戰鬥快感。還有多種無盡模式怪物，讓遊戲更加過癮。玩家使用遊戲中賺取的金幣可分別升級機甲的威力傷害及離線收益，同時在離線時也可以依然賺取離線收益，當玩家再次返回遊戲時，即可收到離線收益金幣用來升級，提升威力，戰勝新的關卡。
"Eliminate All Happiness" is an action shooting game. The game is easy to operate and easy to use. Players can slide the screen left and right to make the protagonist’s mecha move and automatically shoot the monsters falling in the sky. The monsters will fall to the ground and bounce according to the acceleration of gravity. The fun of the game is the rhythmic control of mechas to attack monsters and perfect avoidance of the whereabouts of monsters. Finally destroying all monsters in the level is considered as a pass.

The game provides a variety of aircraft to experience the refreshing combat pleasure. There are also a variety of endless mode monsters to make the game more enjoyable. Players can use the gold coins earned in the game to upgrade the power damage and offline revenue of the mecha separately. At the same time they can still earn offline revenue when they are offline. When the player returns to the game again they can receive offline revenue gold coins to upgrade and improve. Power overcome new levels.