To easily get the “Flawless Display” achievement, you must start Shiva’s quest. Go to “The Bowery” and head to the Gotham Merchants bank. You will see an abandoned baby stroller. Inspect it, and Shiva’s quest will begin. Don’t worry if you take damage while completing her tasks. Once you finish all of her tasks, meet with her in Sheldon Park for the fight. Try jumping after your own attacks to give enemies fewer chances to hit you. Your Shock Gloves may help near the end of the fight. If you get hit at any point during this fight, restart the battle and try again.