Tron is a blast and tbere is nothing like its spinning disk. It creates the wildest and often fastest returns of any game I have seen. ACDC premium is very strategic and would take a lifetime to master so it too is a keeper. MET is fun but would rank third in my book. Funny that two of the games you identify - ACDC and MET - are difficult games to explain as their rules are a bit nontraditional, while Tron is very intuitive. After not playing Tron for awhile I recently made it to portal and was one shot shy of completing. While totally maddening it was still a great time.