Here are some cheats and tips for the game Super Thunder Blade.
1 DBYA-AA7Y Invincible while attacking straight ahead
2 DB5A-AA8Y Invincible while attacking from above
3 A37A-AA30 Infinite lives
4 AJET-AA5R Infinite continues
5 AEET-AAC6 Start on Stage 2
6 AJET-AAC6 Start on Stage 3
7 ANET-AAC6 Start on Stage 4