Honestly, how Fist turned into an antagonist was very interesting. You could argue the issue, he was too logical. He couldn't understand emotions. His argument didn't look at the positive side of emotions. Honestly, it felt Alma's decisions at times weren't always based on logic, which I found interesting.
Overall, Mecha-ude was a very fun anime. Didn't reinvent the wheel, but it didn't need to. It really nailed the fun factor and the final episode for the big fight they went in. I hope this ends up being a success so they can do a continuation or a new project. I'd give it 7/10. Perhaps 3 more episodes could have smoothed things better, but this show was a lot of un.