I set up a rig in my game so after the 2 characters are selected, the other character cards destroy themselves. This way you don’t jump on them or use them to your advantage…
http://www.flowlab.io/game/play/603047
All the cards are children to an object called ‘select console’
The console sends a message to the game console telling it P1 and/or P2 has been chosen. Once both are chosen, it sends the ‘done’ back to the select consoles (because the character cards are children, they should receive it and have the same behaviors) that weren’t selected, and the consoles destroy themselves.
However they won’t work all the time. Seldom they do, else they don’t