If your Roku game remote is no longer functioning, first make sure the batteries are working and inserted properly.
If you still have an issue, it is possible your Roku game remote came unpaired with your Roku 2 player. Unlike standard Roku remotes, which use infrared (IR), the Roku game remote must be paired to (recognized by and connected to) your Roku player.

You can re-pair your Roku game remote in the following ways:

Try this first:

• If you also have a Roku standard remote, use it to go to Roku game remote pairing in Roku Settings. Go to Settings > Game remote pairing. Your Roku player will automatically enter pairing mode on this screen. Remove the battery case door and press the purple pairing button to put your Roku game remote in pairing mode. Once both devices are in pairing mode, your Roku player should automatically recognize and connect to your Roku game remote.

If the first step didn't work, try this:

• Remove the battery case door and press the purple pairing button to put your Roku remote into pairing mode. Confirm the LEDs on the front of the remote are blinking continuously. Remove the power cord from your Roku player and re-insert it to restart your Roku player. When your Roku player fully re-starts, it will automatically enter pairing mode and recognize and connect to your Roku game remote.

If the above two suggestions do not work, try this:

• If neither of the above suggestions were successful, you can try a factory reset of your Roku player. 

1. Open the remote battery door and press the purple pairing button once to put your Roku Game remote into pairing mode. The two front LED on the remote should blink.
2. Next locate the reset button on the Roku 2 player. It is on the backside of the player, just above the power connector. Using the tip of a pin, like an opened paper clip, press and hold the reset button for about 15 seconds, then release the button. 
3. Once your Roku player restarts, it will automatically enter pairing mode. Your Roku player should recognize and connect to your Roku game remote. The two front LED on the remote should stop blinking and be turned off.
4. You will need to re-link your Roku player to your Roku account and to any channels that require activation (e.g. Netflix, Pandora, Hulu Plus).