Got some more simple achievements out of some DLCs, including a bit of grind. The hardest thing I did on here was clearing one of those Portable 3 special missions where you have to use a special UI and doing a max combo on one of those songs. Rough stuff, needed 6k mastery.
Freestyle combo: ~380k
(4h 15m)
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More playing. I got 116 out of 215 achievements. 25 are currently unobtainable cuz I don't own their DLCs, but I think I got every "free" achievement. It's multiplayer, grind or tough challenge now.
freestyle combo: ~500k