Cave Story(a.k.a Quote in Windows 8):
https://www.cavestory.org/forums/threads/quote-in-windows-8-for-psp-crossover-demo.14226/
Megaman (a.k.a The adventures of megaman in windows 8):
coming soon (is better than the one above)
Mario(a.k.aSuper Mario Bros crossover:Bowser hacks the internet):
IDK when