I agree with everyone else that Tetris is amazing. I have a Tetris app on my phone, and I also love to play it at the arcade. I've gotten into Galaga since it's one of my boyfriend's favorite classics, and we only play that when we're at an arcade. I don't know if this counts as arcade, but I do remember being addicted to the pinball game that was on my desktop computer back in the day. For a long time, I played Crossy Road on my phone and thought it was the greatest thing ever. I don't know if it was an arcade game before or after I had it on my phone, but playing it at the arcade is AMAZING because there is a physical button you can push repeatedly with a little arm strength to make the jumping happen. For those that don't know what it is, Crossy Road is a game where you're given a character (starts out as a chicken) who has to cross over land and water without either getting run over, eaten by another creature, or drowning in the river. It's button mashing delightfulness, and you should try it!