Update! (new arena, and new boss)

Major update for Gladiator arena. New arena, new boss, planning ahead for couple more arenas and new playable characters.

Also i did rebalance whole game, with previous version the problem was that i basically threw bunch of enemies on player it becomes boring really quick, now there less enemies on screen at the same time, they are tougher have more complex behaviors,  which i think makes gameplay  much better.

Looking for feed back guys.