I can't get the last medal???

[m0th64]

I've got every trophy except for Medal Master and every medal except Block Too Much, which I can't get for some reason.

I've spent the last 45 minutes mashing R. I've tried spending the entire game in shield, I've tried blocking every attack the opponent throws, nothing has given me this medal. What am I doing wrong?

[m0th64]

Update: I don't know what happened but it randomly showed up this morning and I unlocked Far Far Away Tower.

[Murtag]

Oh my god someone has actually managed it, grats.

[m0th64]

I mean, only probably four days work in total. I beat the first 3/4 of challenge mode in two days, then just got too burnt out to finish until now. It wasn't actually that hard, just very infuriating. 

[A51 Trooper]

The easiest way of getting it is to play at Kung Fu Dojo, wait for a CPU to grab a Dragon Mask then block all the flames. Repeat once or twice to ensure you get it.