Thanks for the feedback. I should definitely have tried to clean up those errors or figure out how to hide the console altogether, since I didn't notice anything bad happening as a result of them. I just ran out of time because I was going on my hols a couple of days before the jam ended.
Yeah, allowing the mech to jump down was something I wish I'd added, but the IK legs were a bit too in charge and I just kinda stopped improving that stuff as I was crunching on making assets. I should probably learn to use free assets a bit better so I can spend time on the more important things like gameplay and perhaps the main assets like the mech etc.