I have gotten two endings
I'm not sure what the other two are though
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Maybe try... not killing him...?
And although Toby's dialogue is slightly different in the two runs you did, the sequence with Flowey afterward is the same, so I consider both of those the same ending (genocide). You still have yet to do the pacifist ending and the two other hidden endings (I don't want to name them because that would give them away...). Good luck!