[+] The currency name is now included when the amount of money is printed. You can configure this in your Economy plugin, like Essentials.

[+] You can give multiplicators to users giving the permission 'mobmoney.multiplicator.<multiplicator>'. For example, if you give the permission 'mobmoney.multiplicator.2', will receive the double amount of money. If the user has 'mobmoney.*' will have all privileges of the plugin, but will have the default multiplicator, 1. If the user has multiple multiplicators, will have the highest one. You can give multiplicators below 1.

[+] Now your users can get money killing other players, you can disable this. By default, you can disable this in the config, the killed player will lose that amount of money. If the killer has a money multiplicator, you can enable in the config to affect this multiplicator in the config.
If in the config is enabled to withdraw the amount of money to pay, and for example, has to pay $1 and the user only has $0.5, the amount of money that the user is going to receive will be $0.5. If the user has no money, or negative money, is not going to pay nothing, and the other user is not going to receive nothing.

[!] Now, when an user kills an entity, the plugin triggers the event AsyncMobMoneyEntityKilledEvent, allowing integrations with another plugins. If the entity is banned, disabled, or the user is in creative and disabled by the configuration..., the event will be fired anyways, but as cancelled.

[!] Now by default, when the configuration is generated, the entities will be giving 0, so, all entities will be disabled by default

Next update: More configuration available with kill streaks, and to run commands when an entity is killed. You will be able to add conditionals.