Boat Evolution

I'd give it 3.5 stars if they let me. It's fun and enjoyable, for the most part. The issue is there are so many levels(currently at lvl 30) that the first gates you have to pass through, are negative gates that are 4 to 7 times higher then your boat price leaving you with $0. Getting that more then once in a row gets frustrating, what makes it much worse is there's not enough positive gates to make any headway. I've started with a $64k boat and finished more then once, with a $0 boat.

This was ok but after beating the boss the levels become super easy and nothing upgrades after level 50 on the bullets and speed

Level 60 and haven't gotten any stronger than I was at level 1