I think you should add
- More levels / places to fight
- Set a reload time for the Ranger
- Maybe a new character like a werewolf
- add special attacks that you can only activate a certain amount of times each game
For one of my other games, the proximity behavior isn't working for a certain object. In the black character called staff, one of the proximities set to find "Ecastle" is triggering when he goes near it.