"Battle School" basically involves killing monsters by shooting them with a gun similar to the conventional gun shooting games as well as introducing a new system of mouse action and invasion. The mouse action system is a system wherein the player's character rescues a party member or deals a fatal blow to the enemy when the player clicks the mouse at the right time. On the other hand, the invasion system is a system that ensures fun in unlimited play - a feature found only in online games - by basically allowing players to invade and capture the user's dungeon, i.e., the school. In terms of character development, the player doesn't just gain experience points immediately after killing monsters; instead, he/she only acquires them by hitting the floating objects after a monster is killed or a box is smashed. This method was used in console games such as "God of War," "Onimusha," and "Devil May Cry" wherein objects were distributed as experience points to enable the development of character of students and skills.

"'Battle School' is taking on the challenge of emerging as a new genre called 'Horror Online Gun Shooting Game,' which used to be considered impossible. It is not just about shooting; rather, it enables an action sequence wherein players can rescue party members with the mouse action system in a critical situation and introduces contents called invasion of other user schools. A new system that used to be nonexistent in conventional games involves running games, forming parties, equipping characters with weapons, and exchanging equipment in messenger. Just as 2D arcade games such as 'Dungeons & Dragons' and 'Final Fighter' were reborn as an online game called 'Dungeon & Fighter,' 'Battle School' is under development in preparation for its rebirth as an online game that transcends the limitation of arcade shooting games such as 'House of the Dead' and 'Time Crisis'," CEO Yang Seung Joon said.

The first Closed Beta Test of "Battle School" is scheduled this coming summer.

Gleam Digital Entertainment horror gun-shooting online game Battle School gives rise to a new genre of Messenger-interworking horror gun shooting game.