It's an amazing and addictive game, I've been playing for several days now. The boss is really strong, I've played 50 rounds in total and only managed to win 2 times. (It's my first time playing Vampire Survivor kind of game, and I gotta say SS2 is very newbie-friendly.)
The best strategy I found to win the boss easily is to:
1. Choose perks that add your "bullets per shot" count (it's best to add them to 3 if you managed to stack enough speed).
2. Choose between homing missile related perks or the Aiming Precision perk (or both, idk).
3. Stack the Speed perks, so that the wolves won't bite the shit out of you.
4. Choose Dashing related perks and make yourself able to dash at least 2 times.
5. A bunch of perks related to Shield and Health Gains.
6. And most importantly, if you managed to roll out the "Starring to Scare" perk, the boss fight will change its difficulty from "seriously hard" to "mildly challenging" in an instant.
Please be aware that this strategy is written on 0.6 version, and it might be obsolete in future updates.
