34 Atomiswave games rendered @ 4k resolution. This video shows most of the games for the system. There's a timer in the bottom right for each game time remaining. Atomiswave was basically a dreamcast for arcade.
All games are natively rendered at 4k, there's an option in the emulator to enable widescreen, which renders the viewpoint wider than the usual 4:3 area. It doesn't stretch the graphics at all, it renders the scene wider than it originally did for 4:3 screens. So what that means is you get proper rendered widescreen with 16:9 non stretched graphics! Some of the background textures in the games don't go wide enough for this. I left it on in a few games that were a bit broken, so you can see it. For the most part 16:9 mode works really well though. I added a small section about most of the arcade hardware as well for anyone interested.
All of the gameplay and video footage in this upload were created by me.