During the Kickstarter for this game the two highest pledge levels (The Super Speed, Unlimited Lives) included a quickly delivered prototype of the game. The prototype was printed by The Game Crafter.
You want the best, and you want it now. If you want your game delivered faster than a blue hedgehog, we will deliver you a prototype of the 148-card base set as soon as the campaign ends and your payment processes. It's printed on glossy, playable cardstock -- not as premium as our final cards, but still pretty nice -- and it comes in an oversized prototype package.
If you believe in the future of Boss Monster, then your best value is the Unlimited Lives pledge level. Just as with the Super-Speed pledge level, we will send you advance prototype of the game as soon as the project successfully funds.
From that website:
"If you back at the Super-Speed or Unlimited Lives level, we'll send you a prototype copy of the game printed by the Game Crafter. Here's the prototype on the left, with a very rough mockup on the right of the final game's dimensions.
Inside the prototype you'll find... a lot of brown paper! As you can see, the box is larger than it needs to be. (This is the only box size that Game Crafter prints that's larger than a tuckbox.) The cards will be in plastic bags, and will require separation and collation. Inside the box you'll also get a thank-you letter from the Brothers, and a condensed version of the game instructions.
The cards from Game Crafter are nice and playable, but definitely less durable than our final cards. You'll notice some wear and tear on the edges after even a couple of plays, especially for the black-bordered cards. Printing will probably be somewhat off-center, though if anything comes so off-center that it's unplayable, contact Brotherwise and we'll get a new version printed for you."