Thank you so, so much for playing and for even sharing a little story, haha, your comment was a very fun read! And the fact that it runs with wine is actually very valuable feedback - I think you're the first person who managed to launch a SHMUP Creator engine game on Linux!
Curiously, almost everyone seems to avoid using the triple shot, I thought it'd be a viable choice since it really melts normal enemies - and it can be point-blanked into bosses (at least the second boss) at times for 150% damage compared to default shot, but it really ended up too technical, and much less tested than the other 2 weapons. A new weapon system I'm thinking of for the post-jam might give it a niche.
Staying near the center is a good strategy - I wanted to make sure that the game is beatable even if the player falls behind on speedkilling normal enemies, so the bosses don't really move around too much. They *do* sometimes make staying in the center pretty challenging though, hehe... I'm sure you'll enjoy the third boss' later patterns :P
Again, thank you for playing and for your comment! And when you decide to revisit the game - good luck! The third boss is definitely a trickster, but there can only be so many aces up one's sleeve. I'm sure you'll beat her next time ^^