That's what you have to deal with in Line Grapefruit. But that's not all - you're also on a time limit. In fact, you have a very limited amount of time to make it through the "path" (for lack of a better word). You need to snake your way through the winding trail without touching anything. The good news is that a grapefruit only kills you if it touches the end of the line - once you've made it past the grapefruit, nothing happens if it crosses the path you've made.
This is not an easy game, but it's quite unique - I can't recall seeing another game quite like it.