Max does multiple things which include casting High Level Alchemy, smithing at Horvik's shop, firemaking and cooking just outside Horvik's shop, spinning clay at the potter's wheels east of Aubury, woodcutting at the Varrock tree patch. He then runs to the Varrock east bank where he either fletches or casts some spells and uses a pestle and mortar. He runs around each of these locations because he is an avid skiller, but when you do manage to catch up to him he will happily sell you a Max Cape for 2,574,000 coins (99,000 x 26 skills) if you have level 99 in every skill. If a player talks about his cape but do not reach the requirements for it, the 99s still needed will be listed in the chatbox.
Just like a player, he has a follow option and a trade option. However, instead of a "Req assist" he has examine. When you trade with Max, although he will accept your request to trade, he will not offer any items nor accept any items and will eventually decline the trade.
With the release of the Divination skill, Max lost his cape and could be found training divination in the wisp colonies around the world, now wearing a TokHaar-Kal-Ket, a pair of Drygore longswords and a Veteran hood (10 year). His examine was also changed to "He's out to master Divination now!". Max levelled up as he trained the skill, moving to different spots as he did so. Each world's Max was independent of the others', and thus he could not be found in the same spot on every world. At 10:12 UTC on 30 August2013, Max achieved level 99, and the message "News: Max has achieved at least level 99 in all skills!" appeared in the chatbox.
Despite not having 99 in all skills after the release of Divination, Max still wore his hood even though he should technically be unable to, as according to Mod Chris L, "He's pro"[source needed]. This was fixed on 29 August2013, Max now wears the Veteran hood (10 year). One day after, however, Max got 99 Divination and would've been able to wear them again.
When training Divination at the rifts, Max's combat level is displayed despite his weapons being sheathed. The sheathed weapons should cause a player's Total Level to display, not the combat.
Max training Divination was coded by Mod Chris L during his lunch break[source needed].
When passing from Varrock East Bank to the pottery room, and a shooting star happens to be in the way, Max will teleport to the doorway of the pottery room. This proves that if Max is stuck, he will teleport to the next area.
Max will open the door of the pottery room if it's closed. This is a rare, and perhaps unique, ability for an NPC.