【Only boss stage shooter game】
The stages consist only of boss battles, so you can play in a few minutes of spare time. There are 160 types of enemies so you won’t get bored. At the beginning, the enemy ships are easy to defeat, but the difficulty gradually increases until the 160th enemy becomes very challenging.

【Strategic shooter game】
The key to the strategy is to “destroy the most dangerous turrets first”. Look for turrets that are making heavy attacks and quickly reduce their attack power by destroying them first.

Also, some turrets are unactivated and are not attacking. If you attack this, it will start up faster and increase the enemy’s attack power. Let’s leave the unactivated ones alone and destroy the activated turrets first.

【Use Items】
You can use items by tapping with two fingers during the game. The first item is “Shock Wave”, which allows you to delete surrounding barrage. However, it cannot protect against lasers.

【12 types of your machines】
If you clear all 160 stages, a new machines will be unlocked. There are 12 types of machines in total, and they differ in attack methods, durability, movement speed, and number of items. Also, the types of items available are all different.