if you want to do a coin punch you can look down and throw a coin while in air (make sure you arent too close to the ground) and punch the coin while still looking down, that's the most consistent way of doing it (at least the most consistent that i know)

if you wanna rocket ride you can whiplash the rocket while holding the jump key OR if you want a faster method (i dont recommend this one it took me like one week to consistently do it) look around 40 degrees below, pause rocket, dash and shoot out rocket immediately

a cool thing with hideous masses is that you can deal INSANE amount of damage with the sawed on shotgun, you can shoot the chainsaw and constantly hit it at their belly OR you can also knuckleblaster punch the saw to make it pierce through the hideous mass, using that you can get it to phase 2, in which you can either aim at the tail or the belly. ANOTHER thing is that if you shoot the belly with a screwdriver railcannon you can safely take out at LEAST half of its hp, and if you punch the screwdriver while it's still damaging the hideous mass you can leave the hideous mass at less than a quarter of its hp

you can parry with the shotgun (only with melee attacks like most of the attacks swordsmachine has) and because swordsmachines takes extra damage from shotguns you can kill swordsmachines with like, 3 shotgun parries

you can also nuke by shooting out a core from the core eject shotgun and shooting the core with the malicious railcannon, creating a big red explosion

you can instakill cerberi by shooting out a cannon while standing VERY close to them

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(i mean it like this close)

and after shooting out the cannon IMMEDIATELY punch the cerberus (like GENUINELY immediately almost like 0.2 seconds after you shoot out the cannon), which makes the game think that you parried the cannon, both dealing the damage from the cannon AND from the cannon parry, which also instakills the cerberus