I know games back then increased the difficulty to up the play time, but Castlevania 1 for the NES feels like it goes a bit overboard on that.
Still a fun game, but be prepared to die a lot. Or if you’re emulating, to use a lot of save states. Or both.
Also had planned to start the second game next, but I feel a bit burnt out after beating the game, so will go for some other game first. "<.<

I had that original game and will die on that hill. 😁
I died on a lot of its hills. And valleys. And boss fights. Those goddamned eagles. 😡