Reset your Action Replay:
1. Turn off your Nintendo DS and remove the Action Replay.
2. Wait for a few seconds and then reinsert the Action Replay.
3. Turn on your Nintendo DS and check if the red and blue lines are still there.
Update your Action Replay:
1. Connect your Action Replay to your computer using the included USB cable.
2. Open the Action Replay Manager software on your computer.
3. Click on the "Update" tab and follow the instructions on the screen to update your Action Replay.
4. Once the update is complete, disconnect the Action Replay from your computer and try using it again.
Clean the game cartridge:
1. Remove the game cartridge from your Nintendo DS.
2. Use a cotton swab or a soft cloth dampened with isopropyl alcohol to gently clean the contacts on the game cartridge.
3. Allow the game cartridge to dry completely before reinserting it into your Nintendo DS.
4. Try using the Action Replay again and check if the red and blue lines are still there.
Try a different game cartridge:
1. Try using a different game cartridge with the Action Replay to see if the issue is with the game cartridge or with the Action Replay.
2. If the red and blue lines do not appear with a different game cartridge, the problem may be with the original game cartridge.
Contact Action Replay support:
If you have tried all of the above steps and the red and blue lines are still there, you should contact Action Replay support for assistance.