I think I considered doing the 'secretly raise all stats' at one point but I can't exactly remember why I didn't go that route. The final's boss (as well as other bosses too) health is actually dependent on the player's damage output. No matter the build, I think it was 5 or 7 perfect attacks would kill him. I did run into issues where it was way to high to be reasonably possible so I tried to scale it like that to be more fair. I still may make some adjustments to the game going forward, did you defeat the final boss?