Four Second Forever Achievements Here is the full list of all 10 Four Second Forever 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 Space TimeDefeat the Chinchilla and its cohort Combo!Complete 10 games in a row without a failure Ultra Combo!!Complete 50 games in a row without a failure Level 1Level 1 difficulty clear! Level 2Level 2 difficulty clear!! Level 3Level 3 difficulty clear!!! The ChibisatanClear 55 stages in one attempt (10% of Chibistan's record!) The SyndrilClear 100 stages in one attempt (10% of Syndril's record!) Perfect RunComplete Four Second Forever without losing a game Save The DolphinsBeat the game without hitting a single dolphin