Catdammit offers fine score based arcade action with a great art style. Check it out. (You control a hobo cat with a chainsaw)
Impulse is a physics based arcade game with (freely scalable) vector graphics in which you need to precisely navigate your thrusty ship to the exit area of each level (whilst fighting against gravity forces, obstacles and enemies).
The developers describe the game as “a mash-up of Super Meat Boy and Lunar Lander. Or N+ meets Asteroids.”
Note: The first 13 levels have the same layout and thus look very similar… however with level 14 the layout changes with every level.
Forget-Me-Not is a lovely arcadey dot gobbler where you swirl through various mazes to collect food and kill enemies. Imagine Pacman with a gun in a neon world. I think the game would have been a big hit in the 80s.
The game offers a 2 player co-op mode and is available for Windows, Mac and iOS.