Some promised and requested features for Mortal Kombat Legacy Kollection are becoming a reality, including cross-platform online multi-player, connection strength filtering, room codes, gameplay settings micromanagement, more bezels, more Krypt content, performance improvements, bug fixes and gasp, player 2 controller configure for offline multi-player.
https://www.digitaleclipse.com/media/new-mortal-kombat-legacy-kollection-update-available-now