真いきなりラスボス is a free game developed by Dimps Corporation Inc. for iPhone. The game offers a unique and exhilarating experience where players can immediately battle against bosses after reading the synopsis.

The game features over 100 different types of characters, allowing players to strategically utilize their abilities in combat. Players can also search for weapons and armor with special effects to enhance their battle prowess.

With the release of version 3.0.0, the game will undergo offline processing and all data will be stored within the app. The game will also discontinue or adjust certain features. Additionally, the server is scheduled to close on May 29th, 2017, so players are encouraged to update to versionby that date in order to ensure offline compatibility and data migration.

Please note that after May 29th, 2017, updating to or downloading the app as a new user will result in the inability to migrate data to the offline version.

Overall,真いきなりラスボス offers an exciting boss battle experience with a variety of characters, weapons, and armor to discover. The game is free to play with optional in-app purchases.