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+OPEN ENDED world progression where you can tackle the gym leaders in any order you please. Leaders would have different sets of pokemon depending on the number of badges you have. Same deal with acquiring HMs and exploring new areas.
+Veteran trainer mode where opponents have EV trained pokes and actually make predictions against you in battle. Also battle mode is forced on set and you have a 2 item limit like the gym leaders.
-IVs
-Super Training