10 Most Brutally Hard First-Person Shooter Levels In Video Game History

8. Halo 3 - Cortana

Every Bungie era Halo game had that one annoyingly hard Flood level every player dreaded having to trudge through, especially on Legendary difficulty. For Halo 3 this honor goes to the penultimate mission titled Cortana, which just might be the worst level of the series based on sheer annoyance level alone.

To take the Flood and force you to face them in a tight enclosed space is a recipe for frustration, so of course that is exactly what this level does. The environmental design is confusing, and all the Flood slime can make it pretty disorientating as well. This lets the Flood blend in with the environment; sneaking up on you and, as is the case with some of the more irritating Flood forms, attacking from afar on ceilings and walls.

What this level then amounts to is you wandering around struggling to find the right direction to go, all while the Flood attacks you from all directions. It’s hard enough on the normal difficulties, but on Legendary it is truly a test of your will. It will make you want to throw your controller against the wall, which many gamers surely did.