I'm glad you tried out the endless mode. It was originally planned, but I wasn't able to actually implement it until super late, so I'm glad someone enjoyed it. And they will absolutely demolish you if you don't watch out - I've seen it too many times myself in testing! : )
Autofire will be coming in the first update post-jam. That was a suggestion from quite a few people that I didn't even consider during development, but just makes so much sense! Thank you so much for the kind words and suggestions!