@Felthry I don't think it's exactly what you're looking for, but Okami has a nice fakeout where the final boss isn't the final boss. It got me pretty good when I played it.
@KamareDrache Ōkami is a pretty game but we've never finished it... that would have been nice to have a spoiler cw on
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@KamareDrache oh you mean that part! we have gotten to that part
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