 In the 1980s and 1990s, trainers were generally integrated straight into the actual game by cracking groups.When the game was first started, the trainer would typically show a splash screen of its own, sometimes allowing modifications of options related to the trainer, and then proceed to the actual game.In the cracker group release lists and intros, trained games were marked with one or more plus signs after them, one for each option in the trainer, for example