About Boxo Blox, from BoardGameGeek:
Boxo Blox is an all ages block stacking party game. Be the first player to stack your blocks on the tower without them falling off. Take turns rolling dice, drawing challenge cards, and stacking blocks in ridiculous ways.
Players take turns rolling either 1 or 2 dice. Then matching the number that you roll, with the sum of your blocks. So if you roll a 6, you can stack your #6 block on the stacking base, or you can stack a #1 and a #5 block etc, it just has to equal your roll. If you don't have the blocks to match your roll, you can't go and the next player rolls. If you can go, before you stack, you must draw a challenge card and stack accordingly.
To win the game, be the first player to get rid of your blocks by stacking them. However, on your final turn, in order to win the game you have an extra challenge. You must draw 3 challenge cards and play them all together.
-description from the publisher
