There are ways to boost the chances of receiving a favorable outcome, but there's still a shockingly high chance that none of it will matter, and that the bad ending sequence will play out anyway. Without going into spoilers, how the last stages play out is actually decided randomly. There are multiple examples of this problem, but easily the biggest one is how the finale is handled.
There are also a few other questionable elements, such as one stage consisting entirely of an extremely slow auto-scroller, and then there's also one of the game's biggest issues, which is how cryptic some of its systems are. Some segments feel like they were ripped straight out of the previous entry aesthetically, and this even applies to certain gimmicks as well. Even without that, though, Mega Man X5 feels unremarkable in general.
It's similar to the previous entries as usual (with eight main stages that can be tackled in any order, plus the finale afterwards), but that's not necessarily a bad thing… although the production values are noticeably lower than before, such as how instead of there being anime-style cut-scenes like in Mega Man X4, these are just still images now. The titles in this collection have a lot to live up to, and Mega Man X5, while not fantastic, is still a decent start. There's a few new fight combinations, but there are only boss fights from Mega Man X to Mega Man X6, although it's understandable why this is the case (especially since most bosses in Mega Man X7 are designed around 3D anyway). As another note, Mega Man X Legacy Collection 2 still has the X Challenge present in the previous collection, in which you fight sets of two bosses at once, but it's mostly the same. The other extras in this collection are the same as in Mega Man X Legacy Collection, though, including a bunch of franchise artwork and such, and an easier difficulty named Rookie Hunter mode. Loading times are now almost instantaneous, and the boost in visual quality is a positive as well.
One nice thing about the collection that should be mentioned right off the bat is that it offers a few appreciated perks to the PS2 entries, which have never been ported before.