Michael was able to heal with his hands like Max. Later on the only one with that power is Max. Michael claimed he couldn't do that.
Michael uses his alien powers to mend River Dog's broken ankle. This goes against the rest of the series, which states throughout that only Max has the power to heal, whilst Michael's powers are destructive. However, Michael does possess the power of generating extreme heat and of moving objects, so it is feasible that he could realign and fuse a broken bone, even without specialized healing ability.