@@canontheoryThere have been several games since Shredders Revenge
That had the 80s look because it was a game similar to the arcade games at the time and they wanted to replicate that look completely, Splintered Fate had their most recent comic look, and Mutant Mayhem has the movie look since it was a tie in. The same way Last Ronin is probably going for a different look since it is an adaptation.
There are literally dozens of versions of tmnt and most of the time when they appear somewhere else it will be in the style of the current turtles (like when games 8yrs ago had the 2012 look)
At this point there is no "definitive look" for them because every franchise that gained popularity (like Transformers) around that time have so many iterations you stop caring that the design that gets used somewhere isnt the one you care about the most because theyre going to keep using other versions and wont stop