I really liked this one, definetly one of the more unique games I've played so far! I was initially worried that the flying mech controls might feel awkward, but they were surprisingly intuitive and fun to use. That said, I think the movement would have felt even better if the string attaching you to the nuke didn’t have collisions. Removing them would likely give the player more freedom while still maintaining the core idea that you can’t stray too far since you’re attached to it.
I loved the sense of humor and overall epicness, especially during the final boss fight, spinning around it caught me off guard in a good way! However, I feel like all the bosses might have a little too much health; some fights got a bit tedious at times. Another small nitpick: it might be helpful to have an additional visual cue beyond just the "Warning" text in the HUD when a boss is about to perform a strong attack. For example, in the case of the first boss, maybe making their arm blink during the windup?
Overall, a really solid entry, great job!