I just want to say that I really love this game, so much so that I have some suggestions to make some items more “balanced” and useful. Don't feel pressured to add any of this, I'm just sharing my thoughts and giving some ideas.
- I already said it, but the Revive should not be activated with 0 coins and stars. It is very unlikely that you will end up in this position. It should only be activated with 0 coins and only gives you the peak amount of coins you had during the game instead of double.
- Thunder Cloud should give a +5 instead of making the user roll 2 dice to make their movement more consistent. The target should only lose half the coins to make it more fair. (Also, the CPUs never uses this item for some reason).
- Refund should allow you to buy a free item instead of just giving you a discount. This could be balanced by making it a rare item.
- Double Dip should be cheaper to encourage players to buy it.
- Bob-Ombs must explode if a player passes by the owner. It can also stop the passerby and make him lose 10 coins per Bob-Omb in his inventory
- Ghost Bells and Dueling Swords should be a rare items or more expensive to prevent players from abusing them. (Cpus rarely use dueling Swords too)
- Chance Charm should allow you to choose one of the players involved, to make players able to use it against each other and make the item more interesting and justify it being a rare item.
- It would be nice if there was a "Super Custom Shroom" that lets you choose your roll from 1 to 10. Maybe as a rare item or just make it cost 25 coins.
If you ever run out of ideas for items, I recommend checking out the items from Sonic Shuffle. I think some of them would be really cool to use in the game