After beating the game once, I tried to replay it, but the F1 Key didn't work, even when I killed 100% of the Hostiles, so I couldn't progress to the next level. There's no multiplayer, the other challenges don't work, etc.

But aside from it, it was a good experience.

After beating the game once, I tried to replay it, but the F1 Key didn't work, even when I killed 100% of the Hostiles, so I couldn't progress to the next level. There's no multiplayer, the other challenges don't work, etc. But aside from it, it was a good experience.