What you mean killing the same mobs 1000000000 instead of 1000000.premium XP Bonuses:
100% XP Bonus (Lv1-30)
50% XP Bonus (Lv31-50)
20% XP Bonus (Lv51-60)
10% XP Bonus (Lv61-70)
+
XP Boost Scroll (Lv1-60) (10x) Increases your experience point gain by 20% for 1 hour
XP Boost Scroll (Lv1-50) ( 10x) Increases your experience point gain by 50% for 1 hour.
= that is skipping game.
It's gonna feel like private server on steroids... I am personally very disappointed because I wanted to enjoy all aspects of the game and relish in nostalgia of old KO game instead of rushing to the end content with these insane EXP boosts.
Just open a new character and do the same.
You talked like there is leveling content like quests you could not finish because you was already end level or something else.
Mr Robot^^.