Custer's Revenge 1982 for Atari 2600.
Can't forget one of the most f''ed-up games of all time... You play play Custer dodging arrows to get up to a Native American tied to a post and score points by raping her. The gameplay is as horrible as the concept. Atari sued the company. Went out of business during the video game crash.
When Half Life first came out, it was crazy. Those face planter jumpy things always scared this shit out of me.
Half-Life was a trip! I loved the barking 'alien dogs' that shot sonic blasts, reminded me of The Yellow Submarine.
It really got me at the beginning, after you're practiced with your suit, you go into this room where the floor breaks apart and lava quickly starts filling room, about to trap you from the exit. I was frozen for a second, and unbelievably to me I actually made the leaps required to get out.