Adaptive video game music is generally defined as music that changes in some way -- be it melody, harmony, rhythm, or any number of other possibilities -- as a response to a player's specific actions. This paper aims to add to the existing body of research pertaining to the use of adaptive/dynamic music in video games by considering its function as a tool for heightening players' sense of achievement and forward progression. In addition, it will assess techniques used in the soundtracks for Mario Kart, Celeste, and Hollow Knight that facilitate this sense of progression, and explore the methods used to maintain a sense of continuity as the music transitions from one section to another.