Beating the game repeatedly has its rewards. Each time you complete it in Arcade Mode, you will unlock something new. Here is the list of what is unlocked:

1: Ganesha, Indian Palace Stage, Movie Player
2: Cronos, Evil Laboratory, Com Battle Mode
3: Cheat Kids Mode
4: Big Head for Kids Mode
5: Super Buff for Kids Mode
6: Eliminate All Walls Cheat
7: Weaken All Walls Cheat
8: Break Walls only in Final Round Cheat
9: Slow Down the Action Cheat
10: Speed Up Things Cheat
11: No Blocking Mode Cheat
12: MAX Difficulty Cheat
13: Knock Down Battle Mode Cheat
14: Human Mode Cheat
15: Beast Mode Cheat
16: Hyper Mode Cheat