https://psteamcommunity.yuanyoumao.com/groups/BoomboxAlchemy
Good music here.

Thanks for the tips :D Btw that Rainbow&Rooted album art XD

4x Scattershot Furia on max level (5) and it's easy win. :)

Shotguns are actually really good on heavy tracks since they'll have better spread. Also Furia.

I have 1 Subwoofer Furia, Megablaster, Cresendo, Megablaster Furia (in that order, all level 3) and I have defeated every boss except for the last one, I'm going for it.

I doubt you can 100% anything but piano and lower with that settings, only being able to shoot upward and with nothing to shoot on the side/back. It also limits your movements since you have to align to enemies (when you have 3 or 4 rows of them going in different directions you'll wish you had more range). And starting at Mezzo-Forte, those level 3 megablaster will have a hard time killing enemies.

I use 2 megablasters and 2 rocket packs,one of them is furia.Megablasters are shot with left click and Rocket Packs with right click,i only use the rockets on stronger enemies.

2 Megablaster Furias for direct damage, 1 Scattershot Furia for clearing up trash, 1 Crescendo for insta-popping bosses

Thanks for the advices !!

1 Double Cannon Furia and 1 Double Cannon, and 2 Megablasters Lv. 5