Yes, it is jank, but it's enjoyable jank. Hitman: Codename 47 takes you back to that era where games had no qualms with frustrating the player with trial and error gameplay, no checkpoints, and isn't concerned with being a bit unfair, and with that comes a sense of accomplishment when you actually complete a mission. Rarely can a modern game provide the same thrill of successfully taking out your target and sneaking out the back without anyone noticing.