For me it was pong on a computer with a 5 inch green screen built right into the computer and a drive bay just as big as the computer to read the disks like a floppy but bigger and thin
Pong frist second was frogger.. on the same green screen computer..
Space Invaders on the Trash 80 model 1 during 1975,76 but I also dearly loved Adventure, Hunt the Wampus and Hammurabi. Those were the days. My monitor was an old TV set with the video output from the computer kluged into the video in of the B&W 12" TV. I think the mass storage was a Radio Shack tape recorder with a slight modification that allowed me to save and load programs. The computer had 64K of dynamic RAM to execute the programs that were written in Basic.
I Remember the First Game i Played Ever is Taken 3 on Friend Play station.
This game is all about Action and Fighting.