It's always hard to compare games, but to me the reactor area on TNA functions a bit like a split playfield. It makes the other shots faster. The beauty of TNA though, is that it takes what was great about those 80s games and combines them with modern features. I think the Danesi Lock is one of the best new features in years. Combining in lane drop targets (already one of my favorite features) with the ability to lock multiple balls is fantastic.