The last level was dumb. There's barely enough time to do it all when you know what you're doing. And definitely not enough time to figure it out without multiple tries or a walkthrough.
To show opponent's cards click on the circle between the two players. It basically flips the board: you see any cards they have played (as well as any revealed by abilities) and their cards are shown in the front row.
So much of the game isn't explained. How to switch weapons should be explained in game, not just in the info box. The fact that you can equip weapons to allies or exchange weapons between yourself and your allies should be mentioned.
A great 4 star game until the last page of levels had to ruin it. They were glitchy and performed inconstantly. I thought the point of the game was the character jumped when it got to the edge of a platform, but that didn't always happen. Interactions with moving blocks were especially bad.
I also had to restart several of them because my character would get stuck between stages or things would stop working the way they should.
The game favors the person who plays first too much. There should be some game balancing like not allowing the first person to play on the center board.
 "Giants and Dwarves TD"){kind=icon}
 "Cube Escape: Case 23"){kind=icon}
 "Spectromancer: Gathering of Power"){kind=icon}
 "Alien Anarchy"){kind=icon}
 "Nambers Level Pack"){kind=icon}
 "Dead End St."){kind=icon}
 "Tesla8"){kind=icon}
 "Jumphobia"){kind=icon}
 "Raiders took my dog"){kind=icon}
 "hitBox"){kind=icon}
 "Strategic Tic-Tac-Toe"){kind=icon}
 "Sandbox Hero"){kind=icon}
 "The Money Makers"){kind=icon}
 "Doodle God Blitz"){kind=icon}
 "Bear in Super Action Adventure"){kind=icon}
 "Pretentious Game 2"){kind=icon}
 "Epic Boss Fighter 2"){kind=icon}
Ah, it's the tutorial messages covering the timer. Thank you, I'll fix it.