Even with the best intentions, onboarding in games can go awry through a series of common training mistakes in games. One classic error is breaking the player's agency with unskippable dialogue or forced slow-walks right at the start, damaging crucial first impressions of a game. Another is providing controls that don't work as intuitively taught, creating immediate dissonance. These missteps disrupt the fragile trust being built and highlight a poor understanding of the player's initial patience. They often stem from prioritizing information delivery over experiential learning, ignoring the power of learning by doing.

Another frequent mistake is the lack of consistency in teaching language, which contradicts fundamental UX guide in game design. For example, if a glowing ledge indicates climbability in the tutorial, but a similar ledge later is just decor, the player's learned logic breaks. This inconsistency creates frustration and uncertainty, directly contributing to simplicity vs. overload confusion—is the game simple or just poorly explained? Furthermore, failing to signal the end of the tutorial phase can leave players in a "training mindset," hesitant to explore or take risks. This stifles the sense of freedom the game may later offer.

The cumulative effect of these mistakes is a steep, often unseen, cost to player retention. A clunky introduction fails to demonstrate the impact of training on retention, acting instead as a filter that loses interested players. It answers the question of how not to scare off a newbie by illustrating what not to do. Analyzing these failures is as valuable as studying successes, offering clear lessons on the importance of respect for the player's time and intelligence. By identifying and avoiding these pitfalls, creators can ensure their first-level design functions as an open door, not a wall.