For an NES game, Metroid Zero Mission is very impressive. As a GBA title, however, it doesn't always feel like it's playing to its own advantages. The addition of an epilogue doesn't do much to make the game feel more like a complete experience compared to its contemporaries at the time; rather, it simply extends the runtime without adding serious depth where the NES original needed it most.

However, the truth is that Metroid is still a great game, and modern players will appreciate the ways that Zero Mission makes the experience more comfortable, even if they ultimately fail to make the game more remarkable.