Firewall Achievement in Floppy Knights
Complete Molten Mania with Bernard at full HP
How to unlock FirewallPlant Deck
Commander: Captain Thistle
Load up Molten Mania and prepare to defend Bernard. It is completely fine for Bernard to lose his 5 Armor; however, he can't lose any of his 15 HP. Place your Commander and head straight to Bernard, defeating any enemies in your way. Use your Commander to fight off enemies until you can spawn in Barrel Cactus. Once the enemies are mostly dealt with, move both characters to block the enemy spawners.