The game uses the graphics from the original Nintendo 64 version, but the DS screen is much smaller and darker than a television screen is, which often means it's difficult to make out small objects or to notice dark pitfalls, even when they're right in front of you. The frame rate has a tendency to vary between silky smooth and full-on jumpy...so much so, in fact, that in addition to making it tough to make precise jumps, you may also find yourself feeling physically ill because of how the animation is constantly speeding up and slowing down in certain levels.