Did you use the wooden mount? People usually miss that.
Also, did you go back inside the cell to pick up the items? Very easy to miss too.
Edit: If you have a save before the first Tyrant fight (that's the point of no return IIRC) you should be able to backtrack and get whatever you're missing.
The cell where Chris was held? No I didn't, that has to be it! Thanks!
Edit: And RE0 finished for the first time ever. Played it years ago but had stopped after the train. Wish the game told me how long it took me, it didn't feel very long. The training facility was the only long area, the rest were much more bite sized.
My take:
+ Gorgeous, obviously. The church was beautiful and creepy.
+ I like Rebecca and Billy.
+ excellent soundtrack.
+ Fun puzzles. I really liked the animal statue one in particular.
+ Marcus turning into the Queen Leech at the end. The transformation was quite gross and disturbing aka perfect
+ Some new enemies looked pretty cool, like the apes and leech zombies.
= the drop system. Reading stuff about the game helped me prepare (like bringing the hookshot) but I can see how it could be annoying. I don't think it's really any better or worse than item boxes, but it's nice to drop something when you need a key item.
= the partner system. Didn't have many issues although I hated when I activated an elevator without my partner in it.
- the locations, while beautiful, all felt very samey, either between each other or inspired by other RE locations (including the factory from RE2 appearing, which was hilarious because when examining the areas it says you don't need to search, like how would Rebecca know??). The train is obviously excluded, and it's certainly the game's crowning achievement location wise and atmosphere wise.
- strong weapons taking 2 item slots. I managed but it was annoying. I'm guessing it was implemented as a sort of balance to dropping and having 2 characters.
- most boss designs. They weren't even cool mutations, just literally super sized animals. The proto Tyrant was awesome though, so was the queen leech.
- this goes without saying, but the story, opera singing villain, and overall mess that is the plot. Don't even get me started on the geography, or how there's a massive explosion that surely would have gotten some attention, or why was Enrico at the factory or why he said the mansion was used by umbrella for research (I guess he may have discovered something from searching but ugh why??). Where did Enrico even go when he left Rebecca??? He said the mansion was ahead but how did he get there??
- Prequels often have this issue but I'm not sure that there is a better example of disconnect between games of a character. Especially since 0 was being made at the same time, you'd think they would have dropped some hints in REmake that Rebecca had already seen a ton of shit. But this is RE, so these two cons don't really affect my overall opinion of the game much.
All in all, I had a great time. It's definitely not REmake, but I still quite enjoyed the romp. I hate rating games because I often struggle with a numerical value but I'd say RE0 is at least a 7.5/8 out of 10 for me.