It was already pointed out by others, so I guess the player really needs to be differenciated xD
The list of incoming colors can definitley be a cool idea (there are some issues like the space it'd take up and also not making it too confusing for new players, but it's worth a try). Also, I though about making a failed grab act as a defense, and actually I have it implemented in code, but after some (yes, very scarse) playtesting, I came to the conclusion that it made the game too easy to play... it needs more work ahah!
Thanks for your feedback!
(Amazing SCORE by the way!)