Extremely good. One of those games where I play the first hour and think "this is alright I guess". But I'm drawn back and then after a 3 hour straight play session I go to bed wanting nothing more than to go back to that spider ball spot in the Magmoor caverns that I forgot to check before switching the game off. Amazed at how well the Metroid formula transfers to first person. Am now excited for Prime 4.

One criticism: when you're designing a game where you rely on the map so heavily, let me see EXACTLY where elevators take me. "Tallon Overworld East" - cool, how about when I push A on the elevator symbol on the map, you just show me the room I'm about to go to - is that okay? No? Okay I'll just go fuck myself then