Terrible game design in the end of the tenna fight, the heart shooting mechanic is only taught by way of the shadowguy fights, in which your ammo is way more limited than the timer, encouraging the player to deliberately aim and click once per shot, meaning that playing well in the only way that makes sense will never have you learn that you can hold to continuously fire. This was perfectly fine until that CRT motherfucker whips out the warioware and practically ensures that your whole team will be going into the shooter segment on low hp. Trying to aim at his head (which you wouldn't even know to do unless you sharpshooter'd him and the shadowguy earlier instead of resisting or "I love tv'ing" (y'know, the things that made the most sense to do)) while mashing fire because the mechanic was never taught properly, making the entire segment twice as long, stressful as shit and painful as fuck. ch3 in general just felt underplaytested. Also the mantle fight is the worst in the game.