Following the battle against Rollercoaster Berdly, players face a rematch under new circumstances. Instead of Susie and Ralsei, Noelle accompanies Kris, utilizing restorative abilities and frost-based spells. This guide details strategies for overcoming Berdly’s boss encounter in Deltarune’s second chapter.
Berdly Boss in Deltarune, Chapter 2
Round 1

Combat begins with Berdly obstructing progress. Noelle’s initial dialogue boosts his stats by 10%, triggering a minigame requiring players to navigate a heart-shaped cursor through swirling projectile patterns. Post-evasion, selecting the ‘Play Smart’ ACT option activates Noelle’s cognitive abilities to weaken Berdly’s defenses.
Round 2




Players confront a barrage of paper projectiles originating from the screen’s upper right quadrant. Successful evasion enables another ‘Play Smart’ selection, amplifying psychological pressure on Berdly and prompting Kris to summon reinforcements.
Round 3




Berdly deploys spectral allies that fire synchronized energy beams. The evasion phase combines paper aircraft salvos with intersecting laser paths. Selecting ‘Play Dumb’ followed by ‘Sleep Mist’ neutralizes additional enemies and increases mercy potential.
Round 4




The final confrontation features accelerated attacks, including guided paper plane formations and angular projectiles. Consistent ‘Play Smart’ selections across two subsequent phases culminate in victory. Preserving Berdly’s HP ensures narrative flexibility during later Queen encounters.
Tips
Prioritize mercy mechanics over direct damage to maintain story options. Optimal ACT sequence:
- Play Smart
- Play Smart
- Play Dumb & Sleep Mist
- Play Smart
- Play Smart
- Play Smart