****** First of all, this does not stack with the achievement for completing the game on Normal Difficult. ******
In Hard difficult the game has MUCH LESS checkpoints (pretty much one in the middle of the level and one at the boss) so you have to be more careful.
Here are some tips:
- The LT button is your friend. Even if you don't complete the combo (press other button after the launcher) you'll still cause damage, so you can just keep spamming LT and keep jumping on enemies until they are dead. The LT button is also very cheap against big guys so make good use of it.
- If you played on Normal First, you'll have all the weapons unlocked, which makes the Hard playthrough a little easier. Use the Sledgehammer ability (Down+Y or A+Y) to deal with big guys and large crowds. For the bosses, use the shotgun, it's useful against all of them.
- Boss 1 (Razor)
Level: The Dark Road Home
Recommended Weapon: Machete
Use the dodge ability (Right analog stick) and try to stay always behind the boss, hit him with a few hits of your machete and roll again. Repeat.
- Boss 2 (Inferno)
Level: Through the fire
Recommended Weapon: Chainsaw
First try to throw the two gas tanks over him to cause damage. Then shoot at the explosives above to drop some power ups. Now keep jumping next to him until he starts to pull out some smoke and fire his flamethrower to one side. Jump to the opposite side and hit him with the chainsaw. Repeat this process. If he is about to put fire all over the ground, jump to one of the tables.
- Boss 3
Level: Lost in Ruins
Recommended Weapon: Pistols
This boss has 3 styles.
# First one: she will be on the ground and will hit you up close.
# Second one: she will be teleporting over the screen and shooting you at distance.
# Third one: she will be flying and shooting lightning at you, 2 wolves will also appear (one of them will always drop a power up).
Use your pistols at distance against the first style. Jump and try to hit her with your chainsaw on the second style. On the third, focus on killing the wolves first (LT method) and then shoot her with your pistols.
- Boss 5 (Cyclops)
Level: Human Cargo
Recommended Weapon: Revolver
You will want to use your Revolver. Ignore the other enemies and focus on shooting the boss. Use the walls at each side to keep you up and shot the boss as much as possible, he will be down in no time.
- Boss 6 (Doctor)
Level: The Last Resort
Recommended Weapon: Shotgun
Use the shotgun. Not much to say here, keep jumping at the beginning and shooting. When he's laughing land a shotgun combo. There's plenty of power ups (one to the right and one to the left besides the ones that drop from the ninja nurses) so you should be fine.
- Final Boss
Recommended Weapon: Shotgun
Beat the boss until he start throwing his mines. Now just keep going from one side to another. The boss will trigger the mines and take damage (it's kinda stupid). Just repeat until the boss kills himself. Easy!