Favorite chapter: I'm gonna say either "Forget about Freeman!" or maybe On a rail. "Forget about Freeman" For having one of the most rocking tunes (Hard technology rock) and it features you last big fights with the military including the infamous Tank vs. Aliens battle near the end.

On a rail. For having a confusing,tricky,and fun design that features a cinematic moment and a great song itself (drums and riffs).

Least favorite chapter: Blast pit. This level felt unfair and just plain out hard trying to get past the tentacles.

But either way Half life is an amazing game I would reccomend to anyone.