Gunner-chan! Achievements Here is the full list of all 10 Gunner-chan! achievements.Filter Achievement View View Image viewList view Sort by TrueSteamAchievement desc TrueSteamAchievement asc Achievement name desc Achievement name asc TSA Ratio desc TSA Ratio asc Gamers desc Gamers asc Steam order Date won desc Date won asc What are achievement flags? Click to find outApply Defeat Mecha Crab!You defeated Mecha Crab. Defeat Thunder Machine!You defeated Thunder Machine. Defeat Mecha Beast!You defeated Mecha Beast. Defeat Twin Robokos!You defeated Twin Robokos. Defeat Assault Vehicle!You defeated Assault Vehicle. Great Victory!Clear game on easy mode or higher. Case solved!Clear game on normal mode or higher. Greatest Gunner-chan!Clear game on Expert mode. High Speed-chan!Clear game on Expert mode within 20 minutes. Perfect!Clear all challenges in Normal mode or higher.