From that group image, though, it seems the mixes and murps that are shown are limited to combinations within a series. That would mean 'only' 36 combinations, excluding the maxes. Those are the 36 combination you can get by playing the game on the site. It'd be nice to have instructions for those, but indeed, even that might be too much. I'm personally most interested in combining Mixels of the same tribe, as the combos in the game look great, but I think they're commercially not that interesting to show off. The maxes probably already cover that.