RE: 3Dart: Sporcerer 3D (Esp/Eng)

I'm going to assume the actual button under the scroll wheel is what broke as the scroll wheel just makes things easier, whereas if the middle button breaks it's a pain XD though if you didn't work it out already, for future reference in Preferences > Input > Mouse there is a checkbox labelled Emulate 3 Button Mouse which should let you hold down a modifier key (Alt by default) and click both left and right mouse buttons as the middle button which will keep you going if you need to keep going while waiting for replacement mice that work.

Your guy looks a lot like they were a statue or something in a temple and the viewer accidentally woke them up from a long nap and now they're angry XD