You might already know this but the main reason the 7800 had so many old at the time arcade games is because it was originally scheduled for a 1984 release. Mos

You might already know this but the main reason the 7800 had so many old at the time arcade games is because it was originally scheduled for a 1984 release. Most of the lineup was developed and ready with the 1984 release in mind. Then the US video game crash happened and Atari shelved the whole thing games included. The Famicom had a similarly arcade port heavy library in it's early days but over time games got more sophisticated especially as new mapper chips became available allowing for new features like vertical and horizontal scrolling. With the NES being released several years later we got to skip a lot of the more basic titles while still getting some of the older good ones like Donkey Kong.