No More Heroes: Heroes' Paradise

Bitter difficulty unlocks upon beating the game once. You can see this difficulty as a hard playthrough.Before you enter this playthrough through new game+, it is highly recommended to obtain the following in your first playthrough:

•    Tsubaki MK-II or Tsubaki MK-III (Buy it at Naomi’s Lab)
•    Memory of Demon – Technique of Love (Handing in 7 balls to Lokilov)
•    Combo extension, health & strength upgrades (Aqcuired by training at Thunder Ryu bldg.

Having the things mentioned above will make this hard playthrough a lot easier. If you end up having problems beating certain bosses, please refer to the boss guide down below.

Something that will make your life easier here is the use of the "Power Death Blow". Credits go to mccrash3000 for this information.

-Power Death Blow: This is a secret move not mentioned in the game's manual, like the sidestep/darkstep technique. Basically, anytime you can Death Blow an enemy, press R3 and tilt the right stick to follow the arrow direction as normally. then quickly tilt it again in the same direction 3-4 times in a row (ie if the arrow points on left, tilt the stick once on the left to start the animation, and then quickly tilt it again on the left 3-4 times).

If performed correctly, Travis will shine for a second before striking the enemy, and you should hear a "charge" noise. The resulting Death Blow will be slightly more powerful than usual, and most important, it will have a bigger radius, killing all the enemies in the nearby (even 3-4 enemies at once). This is really useful in any stage/mission crowded with enemies, and will save you lots of time if you are against the clock.