Level XP
1 1000 XP
2 2000 XP
3 3000 XP
5 5000 XP
6 8000 XP
7 Free Entry
8 10000 XP
9 13000 XP
10 16000 XP
11 20000 XP
12 25000 XP
13 30000 XP
14 40000 XP
15 60000 XP
Extreme Battles
16 100,000 XP
17 200,000 XP
18 400,000 XP
19 600,000 XP
20 1,000,000 XP
Boss Challenge
Final Level - Defeat a boss ( Claim a key)
Working of Lost key - unknown