As stasted on the Bagfull of Wrong site, Death Ray Manta, SYNSO and more are now freeware.
Death Ray Mant (Win-Mac)
91.1 MiB - 370 downloads
Death Ray Mant (Android)
40.7 MiB - 331 downloads
System Specs
Windows
OS: Windows Vista/Windows 7/Windows 8
Direct X: Direct X9 Required
Graphics Card: Any half decent graphics card purchased in the past 3 years
Memory: 2 Gig RAM upwards
Hard Drive Space: 100 Meg
Mac OSX
OS: Snow Leopard/Lion/Mountain Lion
Memory: 2 Gig upwards
Graphics Card: Any half decent graphics card purchased in the past 2 years
Recent MBP’s should also work, allegedly.
Hard Drive Space: 100 Meg