Though not a "mainline" part of the Mega Man Legends series, The Misadventures of Tron Bonne is still a great and noteworthy entry in the franchise, and is worthy of inclusion in any sort of re-releases or collection of the series, and this is no different. Well, except for the part about there not already being a PC version of the game, unlike the other two, but hopefully GoG has a way around that?
Though released after the original Mega Man Legends, MoTB takes place before, and helps us get to know the Bonne Family a bit better than we did in the first MML game, as it follows them on their journey to becoming the force to be reckoned with in that first title.
It's charming, funny, has catchy music that will stick with you for YEARS, and features the same great graphics of the first game, although cutscenes are usually delivered with 2D art instead of rendered in-engine this time. Not a bad thing, just a different thing.
And you get to pilot a mech! And command a squad of robot minions! That alone is worth the price of admission. But that's not all you do, as this game has quite a bit of variety to it. From fighting off robot enemies in ancient ruins to raiding towns and farms and even the more puzzle-oriented dock heists, there is a lot to do in this game, and the gameplay variety will keep you on your toes -- just as you have to keep those Servbots on their toes to make sure they don't slack off with a round of tort-- er, training!
Speaking for myself, I love all three Mega Man Legends games, but I feel like this one helped inform my view of the Legends world in a way the other two didn't. It really is like another piece of the puzzle that is Mega Man Legends, and more people deserve to play it -- especially without paying the hundreds or even over a thousand dollars that used copies of the English version go for on eBay, or hunting down a PlayStation 3 and trying to solve the Rube Goldberg Machine that is buying games from their storefront.