I printed this game and it's quite good for younger players. My biggest criticism of it for older players is that it's easy to know when it is safe to keep drawing cards from a colour: once 2 yellow monsters are revealed, all yellow cards are safe, ditto for 3 pink monsters, and for 4 blue monsters. I think that the game would benefit from, say, increasing the number of monsters by a little, cutting a quarter of the deck and leaving it out of the game, and splitting the remainder into the draw decks. It would mean that you have some rough idea of how dangerous each colour is, without knowing for sure how many monsters exist in each colour.