Thread:Le Rottweiler/@comment-1496755-20150728154119/@comment-1496755-20150731053930

Not having a use key does not always mean a level is easy to solve (reference: Hexen II). Curiously, Heretic II brings back the use key - it is used only to push buttons and sometimes to scale short ledges (though this can be done with the jump key as well).

Playing Tomb Raider 3 taught me a lot about navigating complex 3D environments, especially with regard to finding a route through one. Remember those London levels? That's absolute torture, yet it feels awesome when you finally beat it (especially if you get all secrets).