Gamaroo is a family game where you have the classic roll dice and move your piece down a path. Some of the spaces have challenges on them, often questions.
The game can really be played only once.
 
 

The image above shows the concept, but the image below shows how you would just use circles with no board. The number of colours you use for circles depends on how many players or teams you have.
 

There are four or three players, or two teams of two (or three) players. Individual players have five glass pieces of a particular colour, while teams have ten pieces.
The goal is to move your pieces from off the track (not on the coloured circles) to down the track and off the end of the track. The first player who moves all his pieces off the track wins.

Players take turns, going clockwise around the table. A player rolls the dice, then moves any one of his pieces that number of spaces (0-4). No two pieces on any team can be on the same position. The coloured parts of the track can only be traversed by the player who has that colour pieces. You need to roll the exact amount, not more, to successfully get a piece off the track.
 

If you complete a challenge you roll again and move any one of your pieces.

When you land on a position that has a challenge, the relevant envelope is opened, except for stars, Sweets, Daring Dice, Death Dice and Dice Duel. Challenges, or at least the questions, are read out by someone who is not on the same team. There might be something secret.
When the challenges on them have been done, i.e. when you run out of envelopes for a challenge, the circle is flipped over and becomes a plain, vanilla position.
Sometimes you get two questions for one challenge. You roll dice for each question answered correctly. If you roll twice you do not move twice; you choose the best roll and move that amount.

Sweets can not be consumed during the game, unless you land on the Sweets circle.
 
 

With Daring Dice you roll a classic 1-6 die as many times as you want, and add up the numbers, e.g. 5 + 1 + 4 = 10, and once you're done rolling you can move any one of your pieces that amount. However, if you roll a six the total is zero and your turn ends.
Don't forget that you need an exact number to be able to move a piece off the board, so make sure the total isn't too high.
Daring Dice is done once for a player, then the circle is flipped over for that colour. For teams, it is flipped over when each player on a team has done it once.

Death Dice is a variation of Daring Dice. It is exactly the same as Daring Dice, but if you roll a six, the piece that landed on Death Dice is kicked off the board and has to start over.
Death Dice is done once, then the circle is flipped over to be Dice Duel.

When a player, Player A, lands on Dice Duel the player chooses an opponent, Player B. The two players simultaneously spend 60 seconds each building their tower of dice, one die on top of another. The player who has the tallest standing tower specifically at the end of the time period wins the duel, and the loser's piece is sent off the board where it will have to start all over again. If Player A loses, the piece on the Dice Duel circle is kicked off the board. If Player B loses, Player A chooses any of Player B's pieces to kick off the board, as long as the piece is on a white circle.