A Koopa's Revenge Wiki

Bowser Coins are an uncommon type of coins that grant Koopa 10 Coins

In A Koopa's Revenge 1

Bowser Coins are rare and a few of them appear in every level. They give Koopa bonuses if he gets some

In A Koopa's Revenge 2

Bowser Coins are still in the game but they spin around and reveal "10" on the back. They replace Star Coins that were previously collected