Very nice game! Had lots of fun but had to call it myself at the end since it got pretty repetitive. I really liked the abilities, and the fact (which i later discovered) that they can stack onto eachother was really cool, i utilized it to effectively stun the ENTIRE screen then the explosions took care of the rest.
I think the octopus shouldnt always be firing their projectiles, since it makes unpreventable damage when theres more than one. It is balanced with that they dont always hit, especially when you only have a few boats. I ended up with just one boat at the end. Additionally the upgrades were a bit limited since it was the only few (my game also suffers from the same issue lol) but i also liked the rarity system, more unique upgrades like the explosion would be very cool.
Overall very nice!! (got a score of over a billion at 25 minutes with 250% intensity and level 84, itch wont let me attach the end screen for some reason)