Hi, I've played and finished this game recently (the version with before your swimming enemies fixes). It was really fun! And just a little bit too hard for me! I don't actually mind that the swimming enemies go too fast, but the first boss was hard for me!
You can find them in Twitch, at https://www.twitch.tv/g_12345/videos?filter=all&sort=time (Note that Twitch removes videos after 14 days but I don't have YouTube account yet. And I started 7 days ago.)
Thanks for the game!