Yes it only has one end, I tought about adding something about to the end on whether you killed the guy or not with like :The cat escaped. congratulations. if you didn't killed the guy and if you killed him The cat escaped. Congratulations ? but I didn't liked changing the end screen and I had school work to do.
But there is one easter egg tho !
Glad you liked the game !!
Spoiler for the easter egg : walls