I've always loved games like this where certain mechanics solve multiple problems. I would really like to play this game as a full $15 game on Steam. The ideas you guys have cultivated are amazing! Moving around in this game feels so fun. Well done y'all!
1. How is the movement? Does any mechanic feel too weak/strong compared to the rest?
The movement is great (though the friction/acceleration on the floor feels a little wonky). I may speed up the character's run speed a little too. The grapple and gun both feel equally strong and I love that they both have moments to shine solo and moments to collaborate.
2. Is the fog too aggressive or too slow? If future levels occasionally had very fast fog for a speed challenge, would that be fun or just brutal?
I think the fog is at the right level of difficulty. I honestly wouldn't know how to feel about a strictly speed-based level without playing it. Could be really cool.
3. Are any specific sections too difficult or unexplained?
I struggled pretty badly with the large wall jump sections. Everything else was perfect.
4. Do you think having enemies to fight would add some extra flavor, or would it distract from the speedy platforming too much?
I think if the enemies were designed to support the platforming it could be really interesting. I have a lot of ideas on how they could go hand in with the movement or puzzley sections. You could also have it go the Titanfall route and make it the challenge to defeat enemies while keeping the momentum.
5. Any bugs or significant exploits?
Not a bug, but I feel like maybe remapping the keys a little may make it more familiar to those who have played similar games in the past. Specifically, I kept trying to press space to ungrapple.