BlazBlue: Continuum Shift

This Achievment´s called "I Gnu It Was Ewe". To unlock it you have to beat 7 challenges with Makoto. Obviously 8-10 are harder than 1-7 so unless you´re talented go for the first 7.
Her combos are pretty simple compared to others. I even managed to get this Achievment prior to Tagers (and damn they´re nothing once you´re into it).

THE FOLLOWING IS ONLY A SMALL AMOUNT OF TIPS, AS THERE IS NO CHEAP WAY TO GET THE CHALLENGES DONE! SO IF YOU´RE ABOUT TO BITCH AROUND ABOUT HOW USELESS THIS SOLUTION IS; SCREW YOU!

Some tips for mastering the challenges:
-Unless it´s the last move in a combo you have to fully charge Makotos Driveattacks, or Bang´ll recover to soon. (This mostly refers to challenge 6 onward.
-If you´re having trouble with Ch. 4.2, connecting the jump Cs after the "B" Astroid Vision, you probably insert the commands too fast. After the grab wait a brief moment until you input 321 B. I waited until I heard Makoto punch Bang. It´s all about the timing, not to hard though^^
-5.1 has a very strict timing you have to match, which in my case ended up me doing 2B + 234A instead of 2B + 4A, therefore initating the Comet Cannon instead of a simple upward punch. However it´s a short combo and you´ll make it sooner or later. (And 5.2 is a cinch, so once you´ve done 5.1, you mastered the "challenge 5")
-Unfortunately 7 is vastly harder than those 6 before. You´ll have to utilize everything you´ve mastered up to now. You´re only one challenge away from 40G you can do it :D

If you´re still unable to do it, there is one last hope for you. ArcSystems will release a patch sometime around this may, which shall ease the difficulty of most challenges (although I don´t now whether this´ll contain the DLC-chars as well) I think it´s a shame, since they are supposed to be "challenges"....

EDIT:
The patch is out and adds a new set of challenges to Makoto (and "others"). You can switch the sets by changing the gameversion in the mainmenu options to every one that´s 1.02 or beneath (for the old set) or 1.03 (for the new set). With this you have a total of 20 challenges at your disposal, from which you may choose.
For example you can complete challenge 1-5 in ver. 1.02, switch to 1.03 and obtain another two (aside from 1-5, as they are marked "done", due to finishing them on ver. 1.02) to unlock this achievement. Meaning choose those you think are the easiest (just for the record, this refers to every character aside from Platinum).