Coins are more important in Sticker Star than in previous Paper Mario games. They are used to purchase stickers from shops and, crucially, to activate the 'Battle Spin' in combat.

Coin Earning Tips:
- Defeat Enemies: Every enemy drops coins.
- Hit Blocks: Question mark blocks and hidden blocks often contain coins.
- Peel Stickers: Peeling stickers from the environment sometimes yields coins.
- Mini-Games: Some levels have mini-games or challenges that reward coins.
Battle Spin Strategy:
The Battle Spin allows you to use multiple stickers in one turn or get a better selection of stickers. It costs coins, with the cost increasing for more spins. Use it strategically:
- Boss Battles: Always use Battle Spin in boss fights to unleash powerful combos.
- Tough Encounters: If you're facing a large group of strong enemies, a Battle Spin can clear them out quickly, saving you HP and valuable stickers.
- Low on Options: If your current sticker selection is poor, a spin can refresh your options.
Don't be afraid to spend coins on Battle Spin; it's often a better investment than taking heavy damage or using too many healing stickers.