# 2. Approve ARB.
Hopefully, by now you should have acquired your **ARB** token for gameplay. Now you need to approve Battledog Games to use your **ARB** during gameplay.
This is a brilliant **checkmark** button inside the game.
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You can't miss it!
As with the standard practice for marketplaces and gaming, we need approval to utilize your **ARB** tokens, this is so you don't have to approve each time you play. It also increases your response time if you have to act fast for any reason.
For your **security concerns**, we also included a **Revoke** button beneath our approval button on our UI, so that **you can easily revoke platform access to your Arbitrum tokens at any time**. The revoke approval button is a darker button right beneath the brilliant golden checkmark button. Click on this button anytime to revoke platform access. We make it that easy.
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It is important to note during gameplay, **The Informant** can be **hovered over** at any time to inform you of how much **ARB** approval you have left. The lesser your approval is, i.e. the closer to zero, the more **The Informant** changes color during gameplay. It is recommended to increase your **ARB** approval when **The Informant** turns **red** to keep you from **running into transaction errors** later. The Informant is a shadowy battledog that pops up once you've authorized approval. You can't miss it.
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If you don't see this handy battledog, it means you are yet to authorize **approval of your** **ARB** for gameplay or you have exhausted your previous approval limit.
**This a prerequisite to play otherwise all gameable transactions will fail.**