4:18 is the farthest I could go. It got hectic towards the end. Very fun.
One piece of feedback I have, the gun doesn't actually fire towards the reticle. At first I thought my aim just sucked (and it did) but the character actually fires slightly to the right of where I aim, causing a few frustrating moments where I was sure it should have hit an enemy but it didn't.
Outside of that, really solid game.