Yes, after finishing the game once, you can access the Boss Rush mode from the New game menu.
There is more information about it on the last game updates devlog.
Regarding the last boss, is always accessible after defeating Subaru (is hidden somewhere in the Office!). It's really hard, if you don't have a party above Lv. 40 though
Hope you have fun with this!
Congratulations!
Now allow me to put your name on the credits from next update onwards!
As more characters and progression on the story goes on, I'm planning on making all bosses overall harder to fight, trying to create new mechanics and sometimes forcing the player to use some strats. I'll be using your feedback to get an idea on which parts of the game to improve in that sense
Thank you again for the commitment, it's quite fun seeing people having fun with my game!
The game has been really fun to play through. I do think some things need to be nerfed (Shaark and either union attacks from other characters or lightning strike deals pretty crazy damage (maybe make shark last a number of hits or attacks rather than turns?), and timestop is pretty busted too (maybe make it more resource intensive?)). No idea how things are going to look in future updates, so maybe the nature of upcoming bosses makes changing these unnecessary, or maybe you have better ideas for dealing with it. Based on how good the game was so far, I'm sure whatever you come up with in future updates will be fun to play through as well! I'll be looking forwards to it!
