No. The reason why MAME Plus Plus was able to play Gauntlet Legends et al was because it used ZiNc's graphics plugins (as in, hardware accelerated OpenGL or Direct3D plugins) that are understandably much faster than MAME's software-driven approach. Also, the reason that you can't find MAME Plus Plus so easily is because the MAME devs issued an ultimatum to the MPP developer. Thus, the development of said build has been halted and official links removed. However, since we're on the Internet, saying "I just can't find it" is total bullshit, plain and simple. You don't even have to search for the plugins, as ZiNc already has them.