1. To not successfully complete a level in a video game, resulting in having to restart or retry the stage
I failed the level three times before I finally beat the boss.
Falhei o nível três vezes antes de finalmente derrotar o chefe.
2. To not achieve the required objectives or score needed to progress to the next stage
You need to collect all the coins to avoid failing the level.
Você precisa coletar todas as moedas para evitar falhar o nível.