R15 secret ending: pentagram optimization for the hidden boss!

Almost everything resets when you transition from the boss fight to the secret boss fight (from ammo to consumable cards to wands to reinforcement timers), but apparently not the status of the pentagrams! So if you have pentagrams and you want that little optimization before the black bishop fight step on 2 pentagrams and end next to the last one! It's time to go for the secret ending on R15. The requirements are as follows: find Theocracy and Red Book if you started with the Victoria (the only gun with one barrel), you need to find some way to do fatal damage to the secret boss without depleting your entire clip once you get to the giant king boss fight, make sure you win with exactly one bishop (other pieces don't matter) when you get to the secret boss, make sure you win with at least one shell loaded in your shotgun The Victoria is a powerful gun, so R15 isn't too bad with it. Getting the two cards necessary for the secret ending tends to make a run a lot harder. Also, there are enough cards in the game that randomly getting both of them in any given run is pretty unlikely. So it's a double whammy because you get super lucky and find both of them early but get destroyed because the bishops are very mobile and too healthy to one shot. So the fact that I got everything I needed to make it to the secret boss in one try was a feat of extraordinary luck. 00:00 floor 1 start 01:31 floor 1 end 01:51 floor 2 start 02:54 floor 2 end 03:13 floor 3 start 04:29 floor 3 end 04:42 floor 4 start 06:10 red book 06:15 floor 5 start 08:21 floor 5 end 08:48 floor 6 start 10:52 floor 6 end 11:55 floor 7 start 14:53 theocracy 14:58 floor 8 start 17:45 floor 8 end 19:13 floor 9 start 26:44 floor 9 end 27:49 floor 10 start 30:27 floor 10 end 31:43 floor 11 start 33:24 boss start 37:17 secret boss Shotgun King: the Final Checkmate https://store.steampowered.com/app/19...