Rollerdrome

Let me start off by saying that you should 100% the regular campaign before doing this one. Out for Blood is not necessarily hard but it can be intimidating. 100%ing the first campaign gets you into the groove of the game and makes everything easier.

Out for Blood is basically the same campaign but with less challenges, however, they can be a bit tougher. So I advise turning on assists (you can still get the achievements with assists turned on). The ones I would advise in specific to turn on are "Infinite Reflex Time", "Invincibility", and "Infinite Ammo". The reason why I mentioned Infinite Reflex Time is I used it a lot to save some of my combos, mainly by sniping an enemy with the Z-11.

Each level has 3 challenges, one time related, one combo related and one point related. The Time related ones are probably the easiest as I myself unlocked them all first try without even trying so I'm confident that others can also. The combo related ones are a bit tougher. You need to maintain a combo throughout the entire level, it's fairly simple but I would say always keep an eye on your combo meter and make sure you have enemies close by to kill and boost it.

Now getting into the point ones. I did all of these by starting off the level with some sort of double input grab, when you hit the ramp that leads you into the arena you can snag a couple thousand easy points by preforming a double input grab. I also want to add that in-between waves of enemies you should probably be hitting some double input grabs or grinds (double input ones give the most points).

Additionally, I would also like to say that while flipping and killing enemies you should also be trying to get combo tokens, they give points and increase your combo multiplier by one. Finally, the last piece of advice I can give is, use your Reflex time, it's helped me a lot, it's saved my combos and also helps to slow down the game if there's a lot going on at once.

Anyways if you need anymore help then just reply to this post and I will answer as soon as I can!

Like the main campaign, you don't have to do all the challenges in the same run. Turn on the assists to help (Invincibility, Infinite Ammo, and Infinite Reflex Time)

There's 3 challenges for each level
1. Single combo
3. Time
3. Score
My strat that I used for every level was to separate Score and Single Combo, meaning playing through the level minimum twice. Now it is possible to get them together but it's honestly not worth the hassle

Single Combo and Time - Time is a non issue, even score runs demolished it. Run around with the grenade launcher and use Reflex Time anytime you use the laser rifle. Almost every enemy can be taken down with a fully charged laser shot and than a couple shots with the pistols if the fully charged shot doesn't do the job. The teleporter and shield guys should be taken out quickly with laser+pistol combo that their abilities don't activate. Those 2 enemies are most annoying so if you can deal with them these two challenges shouldn't pose much issue

Score- my strat was to play like before, getting to a score multiplier of at least 20. Any kill and gold coin is a +1 to the multiplier so it should only take a minute. Once at 20x or higher, you'll want to use the grenade launcher for this trick. Go up a ramp and hold the left stick either left or right and once you get close to the ground shoot your grenade launcher repeatedly whilst holding the left stick. Depending on how fast your character goes, the faster you may have to shoot. It might take a bit to get this down. Depending on what the goal is, getting to 100K combo score on the right with a multiplier of 20 will be 2 million so if its higher then 2 mill you can go a little bit more and vice versa for less

Some levels will be harder to do with raised ramps and places to fall out of map. Eiger Resort for example has lots places to fall, but it has a ramp in the bottom that you can force yourself into a corner. I was able to find a spot for every level to be able to do this so it's possible :)